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Shape-memory poly(p-dioxanone)-poly(ε-caprolactone)/sepiolite nanocomposites with enhanced recovery stress

Mi-Qin Zhan ,  Ke-Ke Yang ,  Yu-Zhong Wang

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Citation:  Mi-Qin Zhan, Ke-Ke Yang, Yu-Zhong Wang. Shape-memory poly(p-dioxanone)-poly(ε-caprolactone)/sepiolite nanocomposites with enhanced recovery stress[J]. Chinese Chemical Letters, 2015, 26(10): 1221-1224. doi: 10.1016/j.cclet.2015.07.019 shu

Shape-memory poly(p-dioxanone)-poly(ε-caprolactone)/sepiolite nanocomposites with enhanced recovery stress

    • 通讯作者: Ke-Ke Yang,
    Yu-Zhong Wang,
  • 基金项目:

    This work was supported financially by the National Science Foundation of China (Nos. 51473096, 51421061, J1103315)  (Nos. 51473096, 51421061, J1103315)

    Innovative Research Team in University of Ministry of Education of China (No. IRT 1026). (No. IRT 1026)

摘要: Shape-memory poly(p-dioxanone)-poly(ε-caprolactone)/sepiolite (PPDO-PCL/OSEP) nanocomposites with different OSEP nanofiber loading were fabricated by chain-extending the PPDO-diol and PCL/OSEP precursors. The precursors and the composites were characterized by 1H NMR, FT-IR, GPC, SEM and TEM. The results demonstrate that a part of PCL segments grafted on the surface of OSEP and composites display a fine dispersion of OSEP fiber in nanoscale with low OSEP content. The shape memory effect (SME) was evaluated by DMA, the results reveal that the PPDO-PCL/OSEP nanocomposites exhibit desirable shape-memory performance. The reinforcement of composites by incorporation of trace OSEP nanofiber evokes an effective improvement in shape-memory recovery stress.

English

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  • 发布日期:  2015-07-14
  • 收稿日期:  2015-06-02
  • 网络出版日期:  2015-06-30
通讯作者: 陈斌, bchen63@163.com
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