| 可生物降解聚酯P(ES-co-DGA)和P(BS-co-DGA)的合成及性能比较 |
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| 引用本文： | 张敏,惠媛媛,李成涛,邱建辉. 可生物降解聚酯P(ES-co-DGA)和P(BS-co-DGA)的合成及性能比较[J]. 塑料科技, 2011, 39(12) |
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| 作者姓名： | 张敏 惠媛媛 李成涛 邱建辉 |
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| 作者单位： | 1. 陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安,710021
2. 日本秋田县立大学,日本秋田015-0055 |
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| 基金项目： | 陕西省教育厅产业化培育项目(2010JC01); 咸阳市科技计划项目(TD10-01) |
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| 摘 要： | 通过改变二乙醇酸(DGA)的含量,将其与乙二醇、1,4-丁二醇进行缩聚反应,得到了P(ES-co-DGA)和P(BS-co-DGA)共聚物,采用1H-NMR表征化学结构,并对共聚物的相对分子质量(Mn)、热性能、力学性能、降解性等进行比较研究。结果表明:随着DGA的增加,两种共聚物的熔点(Tm)均呈下降趋势,但P(ES-co-DGA)的玻璃化转变温度(Tg)逐渐升高,P(BS-co-DGA)的Tg却变化不大;所有共聚物的热分解温度(Td)(失重2%)均在300℃左右。当DGA含量为50%时,P(BS-co-DGA)的最大断裂伸长率可达到921%;当DGA含量为20%时,P(ES-co-DGA)的最大断裂伸长率可达到853%。随着DGA的增加,P(BS-co-DGA)的降解速率增大;当DGA含量为10%以上时,P(BS-co-DGA)的降解性能逐渐降低。
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| 关 键 词： | 聚丁二酸乙二醇酯 聚丁二酸丁二醇酯 共聚改性 热稳定性 降解性 |
Synthesis and Performance Comparison of Biodegradable Polyesters of P(ES-co-DGA) and P(BS-co-DGA) |
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| Zhang Min,Hui Yuanyuan,Li Chengtao,Qiu Jianhui. Synthesis and Performance Comparison of Biodegradable Polyesters of P(ES-co-DGA) and P(BS-co-DGA)[J]. Plastics Science and Technology, 2011, 39(12) |
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| Authors: | Zhang Min Hui Yuanyuan Li Chengtao Qiu Jianhui |
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| Affiliation: | Zhang Min1,Hui Yuanyuan1,Li Chengtao1,Qiu Jianhui2 1 Key laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Ministry of Education,Shaanxi University of Science & Technology,Xi'an 710021,China 2 Akita Prefecture University,Akita 015-0055,Japan |
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| Abstract: | The binary copolymers of P(ES-co-DGA) and P(BS-co-DGA) were synthesized by taking different contents of glycolic acid(DGA) through polycondensation with ethylene glycol and 1,4-butanediol.Chemical structures of the copolymers were characterized by 1H-NMR,and molecular weight,thermal properties,mechanical performance and degradations were also investigated and compared.The results show that with the increasing of DGA,the melting points(Tm) of these two copolymers decrease;the glass transition temperature(Tg)... |
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| Keywords: | Poly(ethylene-succinate)(PES) Poly(butylene-succinate)(PBS) Copolymerization modif ication Thermal stability Degradation |
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