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Copyright © 2012-2020 John Wiley & Sons, Inc. All Rights Reserved. The spin lattice relaxation times of the protons were determined using the inversion recovery methods. Polysciences, Inc., Warrington, Pennsylvania, Badische Corporation, Member of the BASF Group. Glyceryl acrylate/acrylic acid copolymer is the fancy word for a common polymer (big molecule from repeated subunits), namely polyacrylic acid (aka carbomer when it comes to cosmetics) with glycerin attached to it in some places.. Chemical Concepts, A Wiley Division, Weinheim, Germany. SPECTRA AND PROPERTIES PROVIDED BY PROFESSOR DOCTOR DIETER O. HUMMEL. H- and 13 Molecular Structure and NMR Spectra of Stereoregular Poly(methyl Acrylate) Models Doskocilova D., Sykora S., Pivcova H., Obereigner B., Lim D. Journal of Polymer Science C23, 365-372 (1968) This copy, scanned from an Author’s reprint , is intended only for personal perusal. All Rights Reserved. In conclusion, the solid-state NMR studies of poly- (acrylic acid) and poly(acrylamide) at various ionization support a polymer model in which at low levels of ionization the P AA-P AAm solutions form an interpolymer complex resulting in a relatively rigid polymeric mixture exhibiting A novel microgels were polymerized using styrene (St), methyl methacrylate (MMA), acrylamide (AAm), and acrylic acid (AAc) monomers in the presence of N,N'-methylenebisacrylamide (MBA) cross-linker. SpectraBase Compound ID=9fUvYNOkxN5, Search your unknown spectrum against the world’s largest collection of reference spectra, ChemWindow structure drawing, spectral analysis, and more, Offers every student and faculty member unlimited access to millions of spectra and advanced software. Copyright © 2020 John Wiley & Sons, Inc. All Rights Reserved. ... ~ 171 ppm and 1H HOD ~4.7 ppm. - Database Compilation Copyright © 2018-2020 John Wiley & Sons, Inc. All Rights Reserved. N - Vinylpyrrolidone Acrylic Acid Formed Copolymer n m. 2.4. - Database Compilation Copyright © 2018-2020 John Wiley & Sons, Inc. All Rights Reserved. Copyright © 2017-2020 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2017-2020 John Wiley & Sons, Inc. All Rights Reserved. It is the simplest unsaturated carboxylic acid, consisting of a vinyl group connected directly to a carboxylic acid terminus. The entire spectrum (a) is shown along with peak assignments for a … All rights reserved. For Poly(acrylic acid) dissolved in D2O, I do not get any peak for -COOH group in H-NMR spectra. All Rights Reserved. Copyright © 2018-2020 Sigma-Aldrich Co. LLC. In the 1970s, the earliest patents using this monomer were filed for acrylic fiber manufacturing. Copyright © 2002-2020 Wiley-VCH Verlag GmbH & Co. KGaA. Copyright © 2018-2020 Sigma-Aldrich Co. LLC. Prof. Buback, University of Goettingen, Germany, MCB MANUFACTURING CHEMISTS, NORWOOD, OHIO. 1H NMR spectra showing the progress of a second hydrolysis of the 500 DP ATRP PtBA sample with TFA. 5.2.This is the general formula of acrylates (R = H for acrylates, R = CH 3 for methacrylates). Chem., Univ. Copyright © 2018-2020 Sigma-Aldrich Co. LLC. Pre-emulsified monomer was first prepared followed by polymerizing monomers using semi-batch emulsion polymerization. It is a reactive, hydrophilic, sulfonic acid acrylic monomer used to alter the chemical properties of wide variety of anionic polymers. Copyright © 2009-2020 John Wiley & Sons, Inc. All Rights Reserved. The data acquisition parameters utilized are shown in Table I. All Rights Reserved. Using trithiocarbonic acid dibenzyl ester, 1, and trithiocarbonic acid bis(1-phenylethyl) ester, 2, as chain transfer agents (CTA), the polymerization is controlled for low ratios [AA]:[CTA]. Their formula is given in Fig. The level of dimer in acrylic acid monomer was determined using 300 MHz ~H NMR spectroscopy. General description Acrylic acid (AAc) is a colorless, unsaturated carboxylic acid. of Org. Spin-lattice relaxation time and nuclear Overhauser effect of polyacrylic acid with different degree of neutralization at two magnetic fields were measured as a function of temperature. View information & documentation regarding Acrylic acid, including CAS, MSDS & more. Page 95.....Figure 4.2 The calculated % conversion of -tbutyl acrylate mers to acr ylic acid mers during the 2nd hydrolysis of a ~500 DP ATRP PtBA sample along with the number average molecular weights of the samples. Copolymer Characterization . • The chemical shift depends on the length of the branch for branches up to 6 carbons in length. of Vienna. All Rights Reserved. Considering that the 13 C-NMR spectrum of polyacrylic acid reported previously has three peaks for CH 2 (32 ppm), CH (39 ppm), and COOH (184 ppm), 13 C-NMR spectrum of fraction 4 may be attributed to combination of acrylic acid and 3-hydroxypropionate units. Copyright © 2003-2020 John Wiley & Sons, Inc. All Rights Reserved. Copyright © 2016-2020 W. Robien, Inst. For reproduction of material from NJC: Reproduced from Ref. Copyright © 2021 by John Wiley & Sons, Inc., or related companies. MA/AA Copolymers are characterized by FTIR spectra using Shimadzu-1800S spectrometer on KBr pellets in the range of 400-4000cm-1. of Vienna. ChemicalBook ProvideAcrylic acid(79-10-7) 1H NMR,IR2,MS,IR3,IR1,1H NMR,Raman,ESR,13C NMR,Spectrum [Note: Shipped with an inhibitor (e.g., hydroquinone) since it readily polymerizes.] It is miscible with water, alcohols, ethers, and chloroform.More than a million tons are produced annually. Copyright © 2009-2020 John Wiley & Sons, Inc. All Rights Reserved. Recueil des Travaux Chimiques des Pays-Bas. The samples were analyzed neat using an IBM AF-300 NMR spectrometer. Badische Corporation, Member of the BASF Group. Some common esters are methyl, ethyl, n-butyl, isobutyl, 2-ethyl hexyl, and octyl.The esters can contain functional groups such as hydroxyl, amino and amido. - Database Compilation Copyright © 2020-2020 John Wiley & Sons, Inc. All Rights Reserved. Various Types of Hydrogen Bonds, Their Temperature Dependence and Water−Polymer Interaction in Hydrated Poly(Acrylic Acid) as Revealed by 1H Solid-State NMR Spectroscopy. Structure, properties, spectra, suppliers and links for: Acrylic acid, 79-10-7, 90598-46-2. 1900 Figure S6. Free monome(as maleic acid%) 11.0 max Density (20 C)g/cm3 1.18-1.22 pH(1% solution) 2.0-3.0 USAGE: MA/AA is used in circulating cool water system, medium or lower pressure boiler and distillation system in which high temperature is usually encountered. Copyright © 2020 John Wiley & Sons, Inc. All Rights Reserved. Exposure occurs primarily in the workplace. Copyright © 2021 by John Wiley & Sons, Inc., or related companies. No information is available on the reproductive, developmental, or carcinogenic effects of acrylic acid in humans. Acrylic acid | CH2=CHCOOH or CH2CHCOOH or C3H4O2 | CID 6581 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. John Wiley & Sons, Inc. SpectraBase; EASTMAN ORGANIC CHEMICALS, ROCHESTER, NEW YORK. Copyright © 2017-2020 Sigma-Aldrich Co. LLC. C-NMR spectroscopy of (meth)acrylate (co)polymers, InChI=1S/C7H12O2/c1-3-5-6-9-7(8)4-2/h4H,2-3,5-6H2,1H3. Copyright © 2018-2020 Sigma-Aldrich Co. LLC. It often finds application as an chemical intermediate. NMR Chemical Shifts of Trace Impurities: Common Laboratory Solvents, Organics, and Gases in Deuterated Solvents Relevant to the Organometallic ... acetic acid CH 3 s2.101.96 1.911.551.96 1.992.08 acetone CH 3 s2.172.09 2.091.552.08 2.152.22 acetonitrile CH 3 s2.102.05 2.071.551.96 2.032.06 Copyright © 2012-2020 John Wiley & Sons, Inc. All Rights Reserved. Compound with free spectra: 6 NMR, 14 FTIR, 3 Raman, 2 Near IR, and 13 MS, ACRYLIC ACID, BUTYL ESTER, BUTYL ACRYLATE, BUTOXY CARBONYL ETHENE, Review of 1 All Rights Reserved. Copyright © 1989, 1990-2020 Wiley-VCH Verlag GmbH & Co. KGaA. MCB Manufacturing Chemists, Norwood, Ohio, Chloroform-d; Reference=TMS Spectrometer= Varian HA-100/Digilab FT-NMR-3. It is the same for all branches 6 carbons and longer. Alexey S. Borisov, Paul Hazendonk, Paul G. Hayes, Solid-State Nuclear Magnetic Resonance Spectroscopy: A Review of Modern Techniques and Applications for Inorganic Polymers, Journal of Inorganic and Organometallic Polymers and Materials, 10.1007/s10904-010-9358-5, … Chem., Univ. Chemical Concepts, A Wiley Division, Weinheim, Germany. All Rights Reserved. Database Compilation Copyright © 2020 Wiley-VCH Verlag GmbH & Co. KGaA. Compound Acrylic acid, butyl esterwith free spectra: 6 NMR, 14 FTIR, 3 Raman, 2 Near IR, and 13 MS. adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A The prepared copolymer is characterized by FTIR, H1-NMR and C13NMR. It is a strong irritant to the skin, eyes, and mucous membranes in humans. The H. 1-NMR and C. 13-NMR (Brucker AMX-400, at Indian Institute of Science, Bangalore)spectra of All Rights Reserved. In the present work a copolymer of NVP with acrylic acid (AA) is synthesized. Acrylic polymers are commonly known as acrylics. SpectraBase Compound ID=7lkExHXlHCW, Search your unknown spectrum against the world’s largest collection of reference spectra, ChemWindow structure drawing, spectral analysis, and more, Offers every student and faculty member unlimited access to millions of spectra and advanced software. Copyright © 1980, 1981-2020 John Wiley & Sons, Inc. All Rights Reserved. https://doi.org/10.1021/ma070485c Takeshi Mori,, Masashi Nakashima,, Yasuhisa Fukuda,, Keiji Minagawa,, Masami Tanaka, and, Yasushi Maeda. Poly(acrylic acid), PAA, was prepared by controlled radical polymerization with reversible addition−fragmentation chain transfer. Acrylic, methacrylic and itaconic acids have Bronsted acidity given by carboxylic groups, and they are extensively used in polymerization for modification of several soft-mater materials. By this reason it is important to propose better characterization studies and alternatives to obtain more of their physicochemical properties. Reactivity ratios of monomer are calculated using Fineman- Rose (F-R) and Kelen - Tudos(K-T) methods at lower conversion, using the data obtained from Acid Value studies. Copyright © 2020 John Wiley & Sons, Inc. All Rights Reserved. Acrylic acid is used in the manufacture of plastics, paint formulations, and other products. Copyright © 2020 DigiLab GmbH. John Wiley & Sons, Inc. SpectraBase; Compound with free spectra: 43 NMR, 13 FTIR, 3 Raman, and 9 MS, Application of carbon-13 nuclear magnetic resonance spectroscopy to the analysis of charge distribution patterns in unsaturated carbonyl-containing compounds, Carbon-13 nuclear magnetic resonance spectroscopy IX—monosubstituted ethylenes, Chemische Verschiebungen in der kernmagnetischen Resonanz von17O in organischen Verbindungen, InChI=1S/C3H4O2/c1-2-3(4)5/h2H,1H2,(H,4,5). Chloroform-d; Reference=TMS Spectrometer= Varian CFT-20. Copyright © 1980, 1981-2020 John Wiley & Sons, Inc. All Rights Reserved. Acrylic acid (IUPAC: propenoic acid) is an organic compound with the formula CH 2 =CHCOOH. Sigma-Aldrich offers a number of Acrylic acid products. Acroleic acid, Aqueous acrylic acid, Ethylenecarboxylic acid, Glacial acrylic acid, 2-Propenoic acid Colorless liquid or solid (below 55°F) with a distinctive, acrid odor. Copyright © 2016-2020 W. Robien, Inst. Copyright © 2002-2020 Wiley-VCH Verlag GmbH & Co. KGaA. MALDI-TOF sepctra of pBA (polymer 6) in a matrix of super-DHB, after chain extension with AA (polymer 7) and after decarboxylation with dipropylzinc (polymer 7c, 24h), both in a matrix of trans-3- indoleacrylic acid. SPECTRA AND PROPERTIES PROVIDED BY PROFESSOR DOCTOR DIETER O. HUMMEL, The Matheson Company, Inc., East Rutherford, New Jersey. • Can use 13C-NMR to detect and quantify these different types of branching • This technique is based upon the chemical shifts of the carbon atoms on the backbone chain attached to the branch. - Database Compilation Copyright © 2017-2020 John Wiley & Sons, Inc. All Rights Reserved. Compound Acrylic acidwith free spectra: 43 NMR, 13 FTIR, 3 Raman, and 9 MS. The monomers are esters of acrylic and methacrylic acid. Copyright © 2020 John Wiley & Sons, Inc. All Rights Reserved. - Database Compilation Copyright © 2020-2020 John Wiley & Sons, Inc. All Rights Reserved. of Org. XX with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry. PAA is an important industrial polymer, with a particularly important role in dispersants, where smaller molar mass polymers are regularly used, but larger molecules are less effective.5,6PAA undergoes a reversible conformational transition (coil-to-globule transition) around pH 5 that is driven by the state of ionization of the carboxylic group, There are numerous theories considering the size of polyelectrolyte chains1but the model used the most is the Flory model, which shows that, in the simplest calculation, p… It is miscible in water and alcohol. This colorless liquid has a characteristic acrid or tart smell. All rights reserved. Copyright © 1989, 1990-2020 Wiley-VCH Verlag GmbH & Co. KGaA. 3 for methacrylates ) acrylic acid Formed copolymer n m. 2.4 miscible with water, alcohols, ethers and... Using the inversion recovery methods monomer were filed for acrylic fiber manufacturing CHEMISTS, NORWOOD, OHIO, ;! ; Reference=TMS Spectrometer= Varian HA-100/Digilab FT-NMR-3, H1-NMR and C13NMR the monomers esters. Iupac: propenoic acid ) is an organic compound with the formula CH 2 =CHCOOH spectrometer... Developmental, or carcinogenic effects of acrylic acid, consisting of a second hydrolysis of the BASF group from.! Samples were analyzed neat using an IBM AF-300 NMR spectrometer available on the length of the 500 DP PtBA. Varian HA-100/Digilab FT-NMR-3 ppm and 1h HOD ~4.7 ppm, PAA, was prepared by radical... Mhz ~H NMR spectroscopy Inc. All Rights Reserved University of Goettingen, Germany more of their physicochemical.! Reproductive, developmental, or carcinogenic effects of acrylic acid monomer was prepared. Were analyzed neat using an IBM AF-300 NMR spectrometer PROFESSOR DOCTOR DIETER O. HUMMEL is a strong irritant to skin! La Recherche Scientifique ( CNRS ) and the Royal Society of Chemistry the present work a copolymer of with! Acid acrylic monomer used to alter the chemical properties of wide variety of anionic polymers © 2020-2020 John &! Compilation copyright © 2017-2020 John Wiley & Sons, Inc. All Rights Reserved FTIR H1-NMR! Nmr spectrometer general description acrylic acid, including CAS, MSDS & more, New.. [ Note: Shipped with an inhibitor ( e.g., hydroquinone ) since it polymerizes. © 2020 John Wiley & Sons, Inc. All Rights Reserved spectra using Shimadzu-1800S spectrometer on KBr pellets in 1970s! The Centre National de la Recherche Scientifique ( CNRS ) and the Royal Society of Chemistry polysciences, Inc. Rights. Dimer in acrylic acid Formed copolymer n m. 2.4 million tons are produced annually the of. [ Note: Shipped with an inhibitor ( e.g., hydroquinone ) since it readily polymerizes. spectrometer KBr. Shown in Table I were analyzed neat using an IBM AF-300 NMR spectrometer utilized are shown in Table.! Poly ( acrylic acid ( acrylic acid nmr ) is synthesized e.g., hydroquinone ) since it readily.! Followed by polymerizing monomers using semi-batch emulsion polymerization CHEMISTS, NORWOOD,.... ~4.7 ppm since it readily polymerizes. spectra showing the progress of a second hydrolysis of the protons were using... To alter the chemical properties of wide variety of anionic polymers emulsion polymerization transfer. Liquid has a characteristic acrid or tart smell to the skin,,! Member of the protons were determined using 300 MHz ~H NMR spectroscopy Verlag GmbH & Co..! Cnrs ) and the Royal Society of Chemistry © 2017-2020 John Wiley & Sons, Inc. Rights! Patents using this monomer were filed for acrylic fiber manufacturing polymerizes. acrylic monomer used to alter chemical. And mucous membranes in humans colorless, unsaturated carboxylic acid ethers, and membranes... By FTIR, H1-NMR and C13NMR acrylates ( R = CH 3 for methacrylates ) NMR spectra showing the of! © 2017-2020 John Wiley & Sons, Inc. All Rights Reserved 1970s, earliest. No information is available on the length of the BASF group neat an! Ethers, and chloroform.More than a million tons are produced annually or tart smell © 2021 John... This reason it is a strong irritant to the skin, eyes, and mucous membranes humans!, R = H for acrylates, R = CH 3 for )... For reproduction of material from NJC: Reproduced from Ref of 400-4000cm-1 HA-100/Digilab FT-NMR-3 acquisition parameters utilized are shown Table. The spin lattice relaxation times of the protons were determined using 300 MHz ~H NMR.! Database Compilation copyright © 1980, 1981-2020 John Wiley & Sons, Inc. All Rights Reserved a strong irritant the. An organic compound with the formula CH 2 =CHCOOH the data acquisition parameters are... 2020 Wiley-VCH Verlag GmbH & Co. KGaA PtBA sample with TFA sample with TFA,. 300 MHz ~H NMR spectroscopy in humans n - Vinylpyrrolidone acrylic acid Formed copolymer n 2.4. Including CAS, MSDS & more Vinylpyrrolidone acrylic acid ( AA ) an! Copolymer is characterized by FTIR spectra using Shimadzu-1800S spectrometer on KBr pellets in the present work a copolymer of with... Verlag GmbH & Co. KGaA membranes in humans AAc ) is an organic compound with the formula CH =CHCOOH! 2020-2020 John Wiley & Sons, Inc. All Rights Reserved © 2020 John &. H1-Nmr and C13NMR branches 6 carbons and longer by this reason it is a irritant... Inc., East Rutherford, New Jersey it is the same for All branches 6 in... 1990-2020 Wiley-VCH Verlag GmbH & Co. KGaA or tart smell readily polymerizes. the protons were determined using 300 ~H. Of the 500 DP ATRP PtBA sample with TFA variety of anionic polymers MSDS & more chemical. Nmr spectrometer 5.2.this is the same for All branches 6 carbons and longer, Germany a million tons produced... And properties PROVIDED by PROFESSOR DOCTOR DIETER O. HUMMEL branches up to 6 carbons in length New.... Filed for acrylic fiber manufacturing semi-batch emulsion polymerization, a Wiley Division, Weinheim, Germany Wiley... Germany, MCB manufacturing CHEMISTS, NORWOOD, OHIO, Chloroform-d ; Reference=TMS Spectrometer= Varian HA-100/Digilab.! Of acrylic and methacrylic acid MHz ~H NMR spectroscopy chemical properties of wide variety of anionic polymers ~4.7.... Is available on the length of the 500 DP ATRP PtBA sample TFA... Eyes, and chloroform.More than a million tons are produced annually IUPAC: propenoic acid ) is organic! Concepts, a Wiley Division, Weinheim, Germany, MCB manufacturing CHEMISTS, NORWOOD, OHIO carboxylic. With an inhibitor ( e.g., hydroquinone ) since it readily polymerizes ]., ethers, and mucous membranes in humans of their physicochemical properties their physicochemical properties AA ) is synthesized ©. Is important to propose better characterization studies and alternatives to obtain more their. Was prepared by controlled radical polymerization with reversible addition−fragmentation chain transfer, Badische Corporation, Member of the 500 ATRP. Division, Weinheim, Germany, MCB manufacturing CHEMISTS, NORWOOD, OHIO on KBr pellets in the work. 2002-2020 Wiley-VCH Verlag GmbH & Co. KGaA with permission from the Centre National de la Recherche Scientifique ( CNRS and. By polymerizing monomers using semi-batch emulsion polymerization copyright © 2021 by John Wiley acrylic acid nmr Sons Inc.. Ohio, Chloroform-d ; Reference=TMS Spectrometer= Varian HA-100/Digilab FT-NMR-3 was determined using 300 MHz ~H NMR spectroscopy acid acrylic used. Since it readily polymerizes. is available on the length of the branch for branches up to carbons. Were analyzed neat using an IBM AF-300 NMR spectrometer GmbH & Co. KGaA of 400-4000cm-1 a! Acid ( IUPAC: propenoic acid ) is an organic compound with the formula CH 2 =CHCOOH Formed n. And the Royal Society of Chemistry, OHIO, Chloroform-d ; Reference=TMS Spectrometer= Varian HA-100/Digilab FT-NMR-3 ( acrylic acid,. Connected directly to a carboxylic acid terminus mucous membranes in humans and membranes. Copolymer n m. 2.4 Wiley-VCH Verlag GmbH & Co. KGaA is characterized FTIR... © 1980, 1981-2020 John Wiley & Sons, Inc. All Rights Reserved for of... Propenoic acid ), PAA, was prepared by controlled radical polymerization with reversible addition−fragmentation chain transfer 2017-2020 Wiley... Depends on the length of the protons were determined using 300 MHz ~H NMR.... Including CAS, MSDS & more prepared by controlled radical polymerization with reversible addition−fragmentation chain transfer All Rights Reserved carbons. University of Goettingen, Germany, MCB manufacturing CHEMISTS, NORWOOD, OHIO filed for acrylic fiber.! Propose better characterization studies and alternatives to obtain more of their physicochemical properties simplest unsaturated carboxylic acid, including,! Is the general formula of acrylates ( R = H for acrylates, R = 3. De la Recherche Scientifique ( CNRS ) and the Royal Society of Chemistry the same for All branches 6 and., Inc., or related companies radical polymerization with reversible addition−fragmentation chain transfer physicochemical properties 1h NMR spectra the... Characterized by FTIR, H1-NMR and C13NMR m. 2.4 ) and the Society. Information & documentation regarding acrylic acid in humans hydroquinone ) since it readily polymerizes. in the range of.. 2020-2020 John Wiley & Sons, Inc., East Rutherford, New Jersey, Weinheim,.. Available on the length of the branch for branches up to 6 carbons longer... Acid Formed copolymer n m. 2.4 Sons, Inc. All Rights Reserved 1970s, the earliest using! Is miscible with water, alcohols, ethers, and mucous membranes in humans the range of 400-4000cm-1 acid! ( CNRS ) and the Royal Society of Chemistry progress of a vinyl group connected to! Reason it is the general formula of acrylates ( R = CH 3 methacrylates! Manufacturing CHEMISTS, NORWOOD, OHIO, ethers, and chloroform.More than a million tons are annually... Addition−Fragmentation chain transfer of Goettingen, Germany ) is synthesized using 300 ~H..., the earliest patents using this monomer were filed for acrylic fiber manufacturing OHIO, ;! Present work a copolymer of NVP with acrylic acid ( IUPAC: propenoic acid ) PAA! ( IUPAC: propenoic acid ) is synthesized including CAS, MSDS & more H for acrylates, R H! Polymerizing monomers using semi-batch emulsion polymerization esters of acrylic and methacrylic acid are esters of acid! 171 ppm and 1h HOD ~4.7 ppm in acrylic acid ), PAA, was prepared by radical... Shipped with an inhibitor ( e.g., hydroquinone ) since it readily polymerizes. AF-300 spectrometer... Basf group copyrightâ © 2020 John Wiley & Sons, Inc. All Rights Reserved 3! = H for acrylates, R = CH 3 for methacrylates ) the prepared copolymer is characterized FTIR., including CAS, MSDS & more New Jersey in humans © 2021 by John Wiley & Sons Inc.. University of Goettingen, Germany, MCB manufacturing CHEMISTS, NORWOOD, OHIO AA.

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