| PREPARATION AND PROPERTIES OF POLY(LACTIC ACID-CO-GLYCOL TEREPHTHALIC ACID)COPOLYESTER |
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| 作者姓名： | GAO Cuili JI Quan KONG Qingshan XIA Yanzhi** Advanced fibers and Modern Textile Cultivation Base for State Key Laboratory College of Chemical Engineering Qingdao University Qingdao China |
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| 作者单位： | GAO Cuili JI Quan KONG Qingshan XIA Yanzhi** Advanced fibers and Modern Textile Cultivation Base for State Key Laboratory，College of Chemical Engineering，Qingdao University，Qingdao 266071，China |
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| 基金项目： | NSFC(50373022),ShandongNaturalScienceFoundation,QingdaoScienceResearchFoundation |
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| 摘 要： | 1. INTRODUCTIONThe amount of industrial and municipal waste has been increasing all over the world. Therefore, the design and development of materials capable of being degraded into safe components under specific environmental conditions have become incre…
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PREPARATION AND PROPERTIES OF POLY(LACTIC ACID-CO-GLYCOL TEREPHTHALIC ACID)COPOLYESTER |
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| GAO Cuili JI Quan KONG Qingshan XIA Yanzhi** Advanced fibers and Modern Textile Cultivation Base for State Key Laboratory,College of Chemical Engineering,Qingdao University,Qingdao ,China.PREPARATION AND PROPERTIES OF POLY(LACTIC ACID-CO-GLYCOL TEREPHTHALIC ACID)COPOLYESTER[J].离子交换与吸附(英文版),2006(1). |
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| Authors: | GAO Cuili JI Quan KONG Qingshan XIA Yanzhi Advanced fibers and Modern Textile Cultivation Base for State Key Laboratory College of Chemical Engineering Qingdao University Qingdao China |
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| Institution: | GAO Cuili JI Quan KONG Qingshan XIA Yanzhi** Advanced fibers and Modern Textile Cultivation Base for State Key Laboratory,College of Chemical Engineering,Qingdao University,Qingdao 266071,China |
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| Abstract: | To obtain a kind of biodegradable polymer material with satisfactory properties,a new biodegradable copolyester poly(lactic acid-co-glycol terephthalate)(PETA),was synthesized from three monomers of lactic acid,glycol and terephthalic acid.The resulting copolyesters,PETA,were characterized by FT-IR,1H-NMR,DSC,TGA and by the ways of weight loss rate to characterize their biodegradability.The findings in this work indicated that,the Tms and Tds of copolyesters PETA increased with increasing contents of the terephthalic acid units.From the biodegradation tests in natural soil,boiling water,acid buffer solution and alkali buffer solution,it was shown that the biodegradability of copolyesters PETA decreased with increasing contents of the terephthalic acid units. |
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| Keywords: | Lactic acid Glycol Terephthalic acid Copolyester Thermal properties Biodegradability |
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