Suspension Polymerization of Methyl Methacrylate Stabilized Solely by Palygorskite Nano Fibers

Bai-yu Li; Yin-ping Wang; Xiao-bin Niu; Zai-man Liu

doi:10.1007/s10118-014-1395-z

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Suspension Polymerization of Methyl Methacrylate Stabilized Solely by Palygorskite Nano Fibers

Rapid Communication | Updated：2021-06-21

- Suspension Polymerization of Methyl Methacrylate Stabilized Solely by Palygorskite Nano Fibers
- Chinese Journal of Polymer Science Vol. 32, Issue 2, Pages: 123-129(2014)
- Affiliations：
  
  The School of Chemical & Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
- Author bio：
  
  **Bai-yu Li (黎白钰), E-mail: baiyuli@mail.lzjtu.cn
- Funds：
- DOI：10.1007/s10118-014-1395-z
  CLC：
- Received：25 September 2013，
  
  Revised：2013-10-23，
  
  Accepted：24 October 2013，
  
  Published：2014-02
- Accepted：
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Bai-yu Li, Yin-ping Wang, Xiao-bin Niu, et al. Suspension Polymerization of Methyl Methacrylate Stabilized Solely by Palygorskite Nano Fibers[J]. Chinese Journal of Polymer Science, 2014, 32(2): 123-129.
DOI：

Bai-yu Li, Yin-ping Wang, Xiao-bin Niu, et al. Suspension Polymerization of Methyl Methacrylate Stabilized Solely by Palygorskite Nano Fibers[J]. Chinese Journal of Polymer Science, 2014, 32(2): 123-129. DOI： 10.1007/s10118-014-1395-z.

摘要

Abstract

A kind of fibrous clay

palygorskite (PAL)

was used as the sole stabilizer in suspension polymerization without the using of any other stabilizer usually used

especially polymeric stabilizers. In order to improve the compatibility with the organic monomer

PAL nano fibers were organically modified with silane coupling agent methacryloxypropyltrimethoxysilane (MPS). Transmission electron microscopy (TEM) and Fourier-transform infrared (FTIR) spectroscopy results show that the hydrolyzed MPS was attached onto PAL surface through Si—O—Si bonds formation without morphology change of PAL. At a loading amount of PAL to monomer as low as 0.36 wt%

effective stabilization could be achieved. After suspension polymerization

spherical poly(methyl methacrylate) (PMMA) particles were obtained. Scanning electron microscopy (SEM) analysis on both the outer surface and the inner cracked surface of the spherical PMMA particles indicates that the PAL particles reside on the surface of the PMMA spheres. The densely stacked PAL together with attached silane coupling agent stabilized the droplets throughout the suspension polymerization.

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