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Synthesis and characterization of imide modified poly(dimethylsiloxane) with maleopimaric acid as raw material

Tao Xu ,  He Liu ,  Jie Song ,  Shi-Bin Shang ,  Zhan-Qian Song ,  Xiu-Jie Chen ,  Chong Yang

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Citation:  Tao Xu, He Liu, Jie Song, Shi-Bin Shang, Zhan-Qian Song, Xiu-Jie Chen, Chong Yang. Synthesis and characterization of imide modified poly(dimethylsiloxane) with maleopimaric acid as raw material[J]. Chinese Chemical Letters, 2015, 26(5): 572-574. doi: 10.1016/j.cclet.2015.01.011 shu

Synthesis and characterization of imide modified poly(dimethylsiloxane) with maleopimaric acid as raw material

    • 通讯作者: Shi-Bin Shang,
    Zhan-Qian Song,
  • 基金项目:

    This work is supported by the National Natural Science Foundation of China (No. 31200446). (No. 31200446)

摘要: With the natural rosin derivative (maleopimaric acid, MPA) as the raw material, imide modified vinyl poly(dimethylsiloxane) (MP-VMS) was synthesized and characterized by 1H NMR and 13C NMR. The curing kinetic parameters of MP-VMS were determined by differential scanning calorimetry (DSC) at various heating rates (5, 8, 10, 15 ℃/min) from the Kissingner, Ozawa and Crane methods. The activation energy (Ea), pre-exponential factor (A) and reaction order (n) were respectively 18.6 kJ/mol, 71,108 and 0.902. The low-temperature and high-temperature resistance of its curing product were respectively investigated by DSC and thermogravimetric analysis. The results showed that incorporation of MPA could significantly improve the thermal stability of silicone while had no effect on the low-temperature resistance, and the Tmax (the temperature corresponding to themaximum weight loss rate) increased by 70.7 ℃.

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  • 发布日期:  2015-01-14
  • 收稿日期:  2014-11-30
  • 网络出版日期:  2014-12-26
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