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| 脂肪酶催化降解PBS及改性共聚物的研究 | |
| 引用本文： | 张敏,丁明亮,杨金明,张婷,邱建辉. 脂肪酶催化降解PBS及改性共聚物的研究[J]. 塑料, 2010, 39(2) |
| 作者姓名： | 张敏 丁明亮 杨金明 张婷 邱建辉 |
| 作者单位： | 1. 教育部轻化工助剂化学与技术重点实验室,陕西科技大学,陕西,西安710021;浙江温州轻工研究院,浙江,温州,325003 2. 教育部轻化工助剂化学与技术重点实验室,陕西科技大学,陕西,西安710021 3. 日本秋田县立大学,秋田,015-0055 |
| 基金项目： | 国家自然科学基金，温州市科技计划项目，陕西省重大科技创新项目 |
| 摘 要： | 在含少量水的混合有机介质中,采用固定化脂肪酶对数均分子质量达10万以上的PBS及改性共聚物P(BS/CHDM)进行催化降解,并采用质谱(MS)对降解产物进行分析.研究结果表明:在脂肪酶的作用下,常压、60℃、反应24 h得到的产物为淡黄色油状的环状低聚物,主要为一至四环状多聚体,并伴有少量线型低聚物. |
| 关 键 词： | 脂肪酶 降解 PBS改性共聚物 环状低聚物 线型低聚物 |
The Enzyme Catalysis Biodegradation of PBS and Its Modified Copolymer |
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| ZHANG Min,DING Ming-liang,YANG Jin-ming,ZHANG Ting,QIU Jian-hui. The Enzyme Catalysis Biodegradation of PBS and Its Modified Copolymer[J]. Plastics, 2010, 39(2) | |
| Authors: | ZHANG Min DING Ming-liang YANG Jin-ming ZHANG Ting QIU Jian-hui |
| Abstract: | The catalytic degradation of prepared matrix PBS and P( BS/CHDM) by immobilized lipase carried out in the mixed organic medium containing a small amount of water, and degradation products were analyzed by mass spectrometry (MS).The results showed that under atmospheric pressure, 60 ℃, after 24 h catalytic degradation by immobilized lipase, the main products were light-yellow oil oligomer, almost were cyclic unimer, cyclic dimer or cyclic trimer and cyclic tetramer, accompanied a small amount of linear oligomers. |
| Keywords: | lipase degradation modified copolymer of PBS cyclic oligomers linear oligomers |
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