STUDY ON THE PROPERTIES OF POLY(β-HYDROXYBUTYRATE) GRAFTED WITH MALEIC ANHYDRIDE

CHEN Cheng; PENG Shuwen; FEI Bin; AN Yuxian; ZHUANG Yugang; DONG Lisong; FENG Zhiliu; CHEN Shan; XIA Hongmei

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STUDY ON THE PROPERTIES OF POLY(β-HYDROXYBUTYRATE) GRAFTED WITH MALEIC ANHYDRIDE

Research Article | 更新时间：2021-03-19

- STUDY ON THE PROPERTIES OF POLY(β-HYDROXYBUTYRATE) GRAFTED WITH MALEIC ANHYDRIDE
- Acta Polymerica Sinica Issue 4, Pages: 450-454(2001)
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- Published：20 August 2001，
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CHEN Cheng, PENG Shuwen, FEI Bin, AN Yuxian, ZHUANG Yugang, DONG Lisong, FENG Zhiliu, CHEN Shan, XIA Hongmei. STUDY ON THE PROPERTIES OF POLY(β-HYDROXYBUTYRATE) GRAFTED WITH MALEIC ANHYDRIDE. [J]. Acta Polymerica Sinica (4):450-454(2001)
DOI：

CHEN Cheng, PENG Shuwen, FEI Bin, AN Yuxian, ZHUANG Yugang, DONG Lisong, FENG Zhiliu, CHEN Shan, XIA Hongmei. STUDY ON THE PROPERTIES OF POLY(β-HYDROXYBUTYRATE) GRAFTED WITH MALEIC ANHYDRIDE. [J]. Acta Polymerica Sinica (4):450-454(2001) DOI：

摘要

采用DSC、TGA、POM和WAXD等方法对聚 β 羟基丁酸酯 (PHB)及其接枝顺丁烯二酸酐共聚物 (PHB-g-MA)的结晶行为、热稳定性和生物降解特性进行了研究 .结果表明接枝产物的热稳定性明显优于PHB

热分解温度提高了20余度 ;结晶行为发生很大的变化 .结晶速率减小

结晶温度降低

冷结晶温度升高

球晶的织态结构也随着MA接枝量的变化发生明显变化

并且接枝MA促进了PHB的生物降解

Abstract

The thermal stability

crystallization behavior and biodegradability of poly(β-hydroxybutyrate) (PHB) grafted with naleic anhydride (MA) were studied by DSC

TGA

optical microscopy and WAXD. The results showed that thermal stability of maleated PHB was obviously improved

comparing with that of pure PHB. The temperature of decomposition was enhanced about 20℃．After grafting MA

the crystallization behavior of PHB changed evidently. The rate of spherulite growth decreased

the crystallization temperature from the melt state reduced

and the cold crystallization temperature from the glass state increased．With the increase in graft degree

the banding texture of spherulite became more distinct and orderly．Moreover

the introduction of MA groups promoted the biodegradation of PHB.

关键词

聚β羟基丁酸酯顺丁烯二酸酐接枝

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