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Preparation and properties of thermoexpandable polymeric microspheres

Zhao-Sheng Hou ,  Cheng-You Kan

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Citation:  Zhao-Sheng Hou, Cheng-You Kan. Preparation and properties of thermoexpandable polymeric microspheres[J]. Chinese Chemical Letters, 2014, 25(9): 1279-1281. doi: 10.1016/j.cclet.2014.04.011 shu

Preparation and properties of thermoexpandable polymeric microspheres

    • 通讯作者: Zhao-Sheng Hou,
  • 基金项目:

    ong Provincial Natural Science Foundation, China (No. ZR2013EMM004). (No. ZR2013EMM004)

摘要: In this paper, thermoexpandable polymeric microspheres were prepared by suspension polymerization with acrylonitrile (AN) and methyl methacrylate (MMA) as monomers and i-butane as a blowing agent. The micromorphology and thermal stability were researched by polarized microscopy and TGA. The diameter of the expandable microspheres increased from about 20 μm (unexpanded) to 40-80 μm (expanded) upon heating. The maximum expansion volume was higher than 22 times of the original volume and the density of the expanded microspheres was about 16.7 kg/m3. The blowing agent content in microspheres was about 20 wt% and To.e., Tm.e. and To.s. were 80 ℃, 120-130℃ and 140-145 ℃, respectively.

English

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  • 收稿日期:  2014-02-07
  • 网络出版日期:  2014-04-03
通讯作者: 陈斌, bchen63@163.com
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