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    • Crystallization and mechanical properties of biodegradable poly(p-dioxanone)/octamethyl-polyhedral oligomeric silsesquioxanes nanocomposites via simple solution casting method

      Zhecun Wang Chengdong Xiong Qing Li

      Volume 38 Issue 6 October 2015 pp 1589-1596

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      https://www.ias.ac.in/article/fulltext/boms/038/06/1589-1596

    • Keywords

       

      Poly(p-dioxanone); octamethyl-polyhedral oligomeric silsesquioxanes; crystallization.

    • Abstract

       

      In this study, biodegradable poly(p-dioxanone) (PPDO)/octamethyl-polyhedral oligomeric silsesquioxanes (ome-POSS) nanocomposites were fabricated by the simple solution casting method with various ome-POSS loadings. Scanning electron microscopic observations indicate that ome-POSS is well dispersed in the PPDO matrix. Effect of ome-POSS on the isothermal melt crystallization and dynamic mechanical properties of PPDO in the nanocomposites were studied in detail. It shows that the overall crystallization rates are faster in the nanocomposites than in neat PPDO and increase with the increase in ome-POSS loadings; however, X-ray diffraction patterns, POM and the Avrami exponent suggest that the crystal structure and the crystallization mechanism do not change despite the presence of ome-POSS. The mechanical property of PPDO/ome-POSS nanocomposites was enhanced with respect to neat PPDO.

    • Author Affiliations

       

      Zhecun Wang1 2 Chengdong Xiong1 Qing Li1

      1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China
      2. University of Chinese Academy of Sciences, Beijing 10049, China

    • Dates

       
      Published
      October 2015
      Manuscript received
      13 May 2015
      Accepted
      11 June 2015

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