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Miscible blends containing a crystallizable component: poly(vinyl alcohol)/poly(ethyleneimine)

Version 2 2024-06-13, 09:24
Version 1 2017-05-03, 12:59
journal contribution
posted on 2024-06-13, 09:24 authored by Q Guo
Blends of poly(vinyl alcohol) (PVAI) with poly(ethyleneimine) (PEI) were prepared by casting from a common solvent. All blends show a single, composition dependent glass transition temperature (T g ), indicating that the blends are miscible in the amorphous state and in the melt. The overall crystallization rate of PVAI in the blend decreases with increasing PEI content. The crystallinity index of PVAI in the blend does not decrease greatly with PEI content up to a composition of 70/30 PVAI/PEI, since the T g of the crystallizable component PVAI is larger than that of the non‐crystallizable component PEI. The T g of the system PVAI/PEI decreases with increasing PEI content. The interaction parameter B of the two polymers in the melt was found to be −24 J/cm 3 .

History

Journal

Macromolecular rapid communications

Volume

16

Pagination

785-791

Location

Weinheim, Germany

ISSN

1022-1336

eISSN

1521-3927

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

1995, Hüthig & Wepf Verlag, Zug

Issue

11

Publisher

Wiley

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