Enhancement of melt elasticity for poly(3-hydroxybutyrate-co-3-hydroxyvalerate) by addition of weak gel

被引：14

作者：

Arakawa, Keiichi ^{[1
]}

Yokohara, Tadashi ^{[1
]}

Yamaguchi, Masayuki ^{[1
]}

机构：

[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2008年 / 107卷 / 02期

关键词：

biodegradable; polyester; blends; rheology; viscoelastic properties;

D O I：

10.1002/app.26631

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Rheological properties in a molten state are studied extensively for poly(3-hydroxybutyrate-co-3hydroxyvalerate), PHB-HV, with a small amount of crosslinked poly(epichlorohydrin), PECH, having low density of crosslink points. It is found that adding 2 wt % of xPECH greatly enhances the melt elasticity of PHB-HV, one of the serious defects of microbial PHB, whereas it has no effect on the shear viscosity. As a result, viscoelastic nature, and thus processability, of PHB-HV can be controlled by blending the crosslinked PECH. (C) 2007 Wiley Periodicals, Inc.

引用

页码：1320 / 1324

页数：5

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