Structure and properties of PHA/clay nano-biocomposites prepared by melt intercalation

被引：93

作者：

Bordes, Perrine ^{[1
]}

Pollet, Eric ^{[1
]}

Bourbigot, Serge ^{[2
]}

Averous, Luc ^{[1
]}

机构：

[1] Univ Strasbourg 1, LIPHT ECPM, UMR 7165, F-67087 Strasbourg 2, France

[2] Ecole Natl Super Chim Lille, PERF LSPES, UMR 8008, F-59652 Villeneuve dAscq, France

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2008年 / 209卷 / 14期

关键词：

biomaterials; clay; nanocomposites; polyhydroxyalkanoates; renewable resources;

D O I：

10.1002/macp.200800022

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

PHA-based nano-biocomposites have been prepared by melt intercalation. Two main PHAs, poly(hydroxybutyrate) and poly(hydroxybutyrate-co-hydroxyvalerate) have been studied. Structural characterizations were conducted by advanced techniques like SAXS and TEM. A recent method has determined the degree of clay intercalation and dispersion using solid-state NMR. Well intercalated small tactoids (3-10 layers) homogeneously dispersed into the polymer are obtained when good PHA-clay affinity exists, i.e., with organo-modified MMT. In the case of non-modified MMT, microcomposites are evidenced. Crystallization, mechanical, and thermal properties have been correlated to the materials structures.

引用

页码：1473 / 1484

页数：12

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