| HECA/聚己内酯-环氧丙烷共混膜的生物降解研究 |
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| 引用本文： | 杨玉芹,林瑛,张光华,黄勇,陈立班. HECA/聚己内酯-环氧丙烷共混膜的生物降解研究[J]. 高分子材料科学与工程, 2000, 16(2): 77-79 |
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| 作者姓名： | 杨玉芹 林瑛 张光华 黄勇 陈立班 |
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| 作者单位： | 1. 中国科学院广州化学研究所纤维素化学开放实验室,广东广州,510650
2. 广东工业大学化工系 |
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| 摘 要： | 研究了羟乙基纤维素醋酸酯与己内酯－环氧丙烷共聚物共混物膜的生物降解过程，发现共混物膜的生物降解性能与其组成密切相关。共混膜的降解速率随着已内酯－环氧丙烷共聚物含量的增加而加快。在降解过程中，分了量较小的部分首先开始降解，而且降解的速度较快。分子量高的部分降解较慢，控制着整个共混膜的降解速率。
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| 关 键 词： | 己内酯 环氧丙烷 共混膜 生物降解 HECA 塑料 |
| 文章编号： | 1000-7555(2000)02-0077-03 |
| 修稿时间： | 1998-05-21 |
BIODEGRADATION OF HYDROXYETHYL CELLULOSE ACETATE/ COPOLY(CAPROLACTONE-EPOXY PROPANE) BLENDS |
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| YANG Yu-qin,LIN Ying,ZHANG Guang-hua,HUANG Yong,CHEN Li-ban. BIODEGRADATION OF HYDROXYETHYL CELLULOSE ACETATE/ COPOLY(CAPROLACTONE-EPOXY PROPANE) BLENDS[J]. Polymer Materials Science & Engineering, 2000, 16(2): 77-79 |
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| Authors: | YANG Yu-qin LIN Ying ZHANG Guang-hua HUANG Yong CHEN Li-ban |
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| Abstract: | The biodegradation of the blending films of hydroxyethyl cellulose acetate(HECA) and co poly(caprolactone epoxy propane) was studied. It is found that the biodegradation of the blending films is closely related with the composition of the blends. The biodegradation of the blends increases with increasing co poly(caprolactone epoxy propane). The biodegradation occurs from the surface of films and is gradually developed to the inside of them. The biodegradation of the part with the lower molecular weight is easier and faster than that with the higher molecular weight and the rate of the biodegradation of the blending films is controlled by the degradation of the part with the higher molecular weight. |
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| Keywords: | hydroxyethyl cellulose acetate co poly(caprolactone epoxy propane) blending films biodegradation |
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