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首页> 外文期刊>Journal of Polymers and the Environment >Hydrolytic Degradation of PPDO/PDLLA Blends Containing the Compatibilizer PLADO
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Hydrolytic Degradation of PPDO/PDLLA Blends Containing the Compatibilizer PLADO

机译：含增容剂PLADO的PPDO / PDLLA共混物的水解降解

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摘要

The poly(para-dioxanone) (PPDO)/poly poly (DL-lactide) (PDLLA) blends containing various contents of compatibilizer (0, 1, 3, 5, 10 %) were prepared by solution co-precipitation, which were dissolved in 1,1,1,3. 3,3-hexafluoro-2-propanol (HFIP) to form 10 % wt/vol solutions. Then in vitro hydrolytic degradation of PPDO/ PDLLA blends containing poly (DL-lactide-co-para-dioxa-none) (PLADO) as the compatibilizer was studied by the changes of weight loss, water absorption, thermal properties, surface morphology and mechanical properties of samples in phosphate buffered saline (pH 7.44) at 37 ℃ for 8 weeks. During the degradation, the weight loss and water absorption increased significantly for all blends, whereas hydrolysis rate of blends varied with the blend composition. The samples' glass transition temperature decreased notably, while the degrees of crystallinity increased. Compared with uncompatibilized PPDO/PDLLA blends, PPDO/PDLLA blends with compatibilizer exhibited higher hydrolysis rate. The results suggested that the compatibilizer (PLADO) accelerated the hydrolysis rate of PPDO/PDLLA blends during the degradation.
机译：通过溶液共沉淀制备含有各种含量的增容剂（0、1、3、5、10％）的聚对二恶烷酮（PPDO）/聚DL-丙交酯（PDLLA）共混物，将其溶解在1,1,1,3。 3,3-六氟-2-丙醇（HFIP）形成10％wt / vol的溶液。然后通过失重，吸水率，热性能，表面形态和机械性能的变化研究了以聚（DL-丙交酯-对-对-二恶英-无）（PLADO）为增容剂的PPDO / PDLLA共混物的体外水解降解。样品在37℃的磷酸盐缓冲液（pH 7.44）中的性能为8周。在降解期间，所有共混物的重量损失和吸水率显着增加，而共混物的水解速率随共混物组成而变化。样品的玻璃化转变温度明显降低，而结晶度增加。与不相容的PPDO / PDLLA混合物相比，具有相容剂的PPDO / PDLLA混合物具有更高的水解速率。结果表明，相容剂（PLADO）在降解过程中加速了PPDO / PDLLA共混物的水解速度。

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  • 来源
    《Journal of Polymers and the Environment》 |2013年第4期|1016-1025|共10页
  • 作者

    Yang Bai; Pingya Luo; Pingquan Wang; Wei Bai; Chengdong Xiong; Gongming Tang;

  • 作者单位

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, People's Republic of China;

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, People's Republic of China;

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, People's Republic of China;

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, People's Republic of China;

    Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, People's Republic of China,Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637009, People's Republic of China;

    Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, People's Republic of China,Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637009, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biomaterials; Compatibilizer; PPDO/PDLLA Blends; In vitro hydrolytic degradation;

    机译：生物材料;相容剂PPDO / PDLLA共混物;体外水解降解;

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