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[1]吴选军,袁继祖*,余永富,等.聚乳酸/聚乙二醇共混材料的性能研究[J].武汉工程大学学报,2009,(05):60-63.
 WU Xuan jun,YUAN Ji zu,YU Yong fu,et al.Study on the properties of poly(lactic acid)/poly(ethylene glycol) blends[J].Journal of Wuhan Institute of Technology,2009,(05):60-63.
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2009年05期
页码:
60-63
栏目:
化学与化学工程
出版日期:
2009-05-28

文章信息/Info

Title:
Study on the properties of poly(lactic acid)/poly(ethylene glycol) blends
文章编号:
16742869(2009)05006004
作者:
吴选军1袁继祖2*余永富23周月1
1.武汉理工大学化学工程学院,湖北 武汉 430070;
2.武汉理工大学资源与环境工程学院,湖北 武汉 430070;3.长沙矿冶研究院,湖南 长沙 410012
Author(s):
WU Xuanjun1YUAN Jizu2YU Yongfu23ZHOU Yue1
1. School of Chemical Engineering,Wuhan University of Technology,Wuhan 430070,China;
2.School of Natural Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;
3.Changsha Research Institute of Mining and Metallurgy,Changsha 410012,China
关键词:
聚乳酸聚乙二醇共混材料力学性能热性能生物降解性能
Keywords:
poly(lactic acid)polyethylene glycolblendmechanical propertythermal propertybiodegradability
分类号:
TQ322
DOI:
-
文献标志码:
A
摘要:
通过溶液共混法制备了PLA/PEG共混材料,对其力学性能、热性能和生物降解性能等进行测试.结果表明,随着PEG添加量的逐渐增加,PLA/PEG共混材料的断裂伸长率均大幅度提高, 但拉伸强度逐渐降低,弹性模量也呈下降趋势;同时,PLA/PEG共混材料的Tg逐渐下降,聚乳酸分子链间作用力减弱,常温塑性增强,而PEG添加量对其熔点Tm影响不大,熔融焓却随之增大;添加PEG能提高聚乳酸在土壤中的水解速率,从而加快其降解速率.
Abstract:
PLA/PEG blends were prepared by solution blending. Their mechanical properties, thermal properties and biodegradability were investigated. The results showed that their elongation at break gradually increased with the addition of PEG, but that their tensile strength and their modulus of elasticity gradually reduce with the addition of PEG. At the same time, Tg of PLA / PEG blends decreased, the interaction between macromolecular chains of poly(lactic acid) weakened, their plasticities at room temperature increased. The content of PEG took almost no effect on their melting points. But their melting enthalpy increased with the amount of PEG. Their biodegradation rate would speed up with the addition of PEG because PEG could improve the hydrolysis rate of poly(lactic acid) in the soil.

参考文献/References:

[1]Wang Y,Hillmyer M A. PolyethylenePoly(Llactide) Diblock Copolymers: Synthesis and Compatibilization of Poly(Llactide)/ Polyethylene Blends[J]. J Polym Sci Part A: Polym Chem,2001, 39:2755-2766.
[2]Ljungberg N,Wesslen B.Preparation and Properties of Plasticized Poly(lactic acid) Films[J].Biomacromolecules,2005,(6):1789-1796.
[3]Shibata M,Inoue Y,Miyoshi Y. Mechanical properties, morphology, and crystallization behavior of blends of poly(Llactide) with poly(butylene succinatecoLlactate) and poly(butylene succinate)[J]. Polymer,2006,( 47):3557-3564.
[4]Wan Ying,Wu Hua,Yu Aixi,et al. Biodegradable Polylactide/Chitosan Blend Membranes[J]. Biomacromolecules, 2006,(7):1362-1372.
[5]唐文睿,缪培凯,曾科,等. 低能电子束辐射改性聚乳酸聚乙二醇共聚物及其力学性能[J].高分子材料科学与工程,2008,(24):92-95.
[6]王彬,潘君,刘颖,等. 聚乙二醇接枝聚乳酸的自组装纳米微球的制备及性能[J]. 化学学报,2008,(66):487-491.
[7]Li Suming,Vert M. Synthesis, Characterization, and StereocomplexInduced Gelation of Block Copolymers Prepared by RingOpening Polymerization of L(D)Lactide in the Presence of Poly(ethylene glycol)[J]. Macromolecules, 2003, 36 (21),8008 -8014.
[8]Zhang K,Simon C G,Washburn Jr N R,et al. In Situ Formation of Blends by Photopolymerization of Poly(ethylene glycol) Dimethacrylate and Polylactide[J]. Biomacromolecules, 2005, 6 (3):1615 -1622.
[9]Yu Jiahui, Ai Fujin, Dufresne A, et al. Structure and Mechanical Properties of Poly(lactic acid) Filled with (Starch nanocrystal)graftpoly(εcaprolactone) [J]. Macromol Mater Eng,2008, 293:763-770.

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备注/Memo

备注/Memo:
收稿日期:20081117
作者简介:吴选军(1972),男,湖北天门人,在职博士研究生,讲师.研究方向:矿物复合材料与化学工程.
*袁继祖,通信联系人.
更新日期/Last Update: