Managing of hydrogen bonding in aqueous poly(vinyl alcohol) solutions: new perspectives towards preparation of more homogeneous poly(vinyl butyral)

This paper follows up investigations in the field of solution properties of poly(vinyl alcohol). Here we present a combined investigation based on both theoretical and various experimental methods focused on peculiarities in hydrogen bond reorganization in aqueous poly(vinyl alcohol) solutions discu...

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Bibliographic Details
Published in:Journal of polymer research 2020, Vol.27 (3), Article 52
Main Authors: Rumyantsev, Misha, Rumyantsev, Sergey, Kazantsev, Oleg A., Kamorina, Sofia I., Korablev, Ilia A., Kalagaev, Ivan Yu
Format: Article
Language:English
Subjects:
Additives
Alcohol
Catalysts
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Critical temperature
Crosslinking
Hydrogen bonding
Hydrogen bonds
Industrial Chemistry/Chemical Engineering
Molecular weight
Molecular weight distribution
Original Paper
Polymer Sciences
Polyvinyl alcohol
Polyvinyl butyral
Solvents
Viscometry
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Summary:This paper follows up investigations in the field of solution properties of poly(vinyl alcohol). Here we present a combined investigation based on both theoretical and various experimental methods focused on peculiarities in hydrogen bond reorganization in aqueous poly(vinyl alcohol) solutions discussed as a function of temperature. It was demonstrated that the specific polymeric effect takes place in binary poly(vinyl alcohol)/water systems. The effect is characterized by the delay in response of the polymer system on heating until the critical temperature is reached. It was demonstrated in this paper that hydrogen bond reorganization in binary aqueous systems may lead to an increase in the degree of undesirable intermolecular cross-linking reaction. This finding was in contrast to previously made proposition based on hydrogen bond reorganization in ternary poly(vinyl alcohol) solutions. This assumption based on the theoretical studies was confirmed experimentally. Thus, a series of poly(vinyl butyral) samples were synthesized in various solvents using traditional catalysts (HCl) as well as the modern thermosensitive polymeric catalyst. It was demonstrated by using GPC and viscometry experiments that poly(vinyl butyral) samples with a low degree of acetalization (
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-020-2031-y