Bacterial cellulose/poly(3-hydroxybutyrate) composite membranes

被引：139

作者：

Barud, Hernane S. ^{[1
]}

Souza, Josiane L. ^{[1
]}

Santos, Daniele B. ^{[1
]}

Crespi, Marisa S. ^{[1
]}

Ribeiro, Clovis A. ^{[1
]}

Messaddeq, Younes ^{[1
]}

Ribeiro, Sidney J. L. ^{[1
]}

机构：

[1] Sao Paulo State Univ UNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil

来源：

CARBOHYDRATE POLYMERS | 2011年 / 83卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

Bacterial cellulose; Poly(3-hydroxybutyrate) (PHB); Green polymers; THERMAL-BEHAVIOR; CELLULOSE; POLYHYDROXYBUTYRATE; BLENDS; POLY(3-HYDROXYBUTYRATE); MISCIBILITY; PHB;

D O I：

10.1016/j.carbpol.2010.09.049

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

Bacterial cellulose (BC)/poly(3-hydroxybutyrate) (PHB) composite membranes were prepared from chloroform-swollen BC membranes and PHB chloroform solutions. Relative contents were varied from 25 to 90 wt.% of PHB. Macroscopically homogeneous composite membranes were characterized by scanning electron microscopy, Fourier-transformed infrared spectroscopy, X rays diffraction, thermal analysis and stress-strain measurements. Depending on the relative compositions membranes coating of BC microfibrils by PHB and PHB precipitation inside the BC 3 D network of cellulose fibers could be observed. Improved mechanical properties were observed for the composites compared to the individual components suggesting potential applications for the new biodegradable materials. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1279 / 1284

页数：6

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