Novel Approach to Synthesis of Monodisperse Polymeric Microspheres: Heterophase Polymerization of Styrene and Methyl Methacrylate in Presence of Water-Insoluble Functional PDMSs

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• 作者：Denis I. Shragin (2) (3)
  Inessa A. Gritskova (1)
  Victor V. Kopylov (1)
  Elena V. Milushkova (1)
  Liubov A. Zlydneva (1)
  Sergey M. Levachev (4)
  
  2. N.S. Enikolopov Institute of Synthetic Polymeric Materials ; Foundation of the Russian Academy of Sciences ; Profsoyuznaya St. ; 70 ; Moscow ; 117393 ; Russia
  3. A.N. Nesmeyanov Institute of Organoelement Compounds ; Foundation of the Russian Academy of Sciences ; GSP-1 ; V-334 ; Vavilova St. ; 28 ; Moscow ; 119991 ; Russia
  1. M. V. Lomonosov Moscow State University of Fine Chemical Technologies ; Prospect Vernadskogo ; 86 ; Moscow ; 119571 ; Russia
  4. Chemistry Department ; M. V. Lomonosov Moscow State University ; GSP-1 ; Leninskie gory ; Moscow ; 119991 ; Russia
  
• 关键词：Polystyrene ; Polymethyl methacrylate ; Radical polymerization ; Functional polydimethylsiloxane ; Surface ; active substances ; Monodisperse functional latexes
• 刊名：SILICON
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：7
• 期：2
• 页码：217-227
• 全文大小：1,123 KB
• 参考文献：1. Pellach, M, Margel, S (2014) Photochem and Photobiol 90: pp. 952-956
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Materials Science
  Organic Chemistry
  Polymer Sciences
  Biomedical Engineering
  Nanotechnology
  
• 出版者：Springer Netherlands
• ISSN：1876-9918

文摘

Water-insoluble polydimethylsiloxanes (PDMSs) with functional organic substituents at the silicon atom are promising surface-active substances for the synthesis of monodisperse polymeric microspheres. In this regard a number of PDMS oligomers bearing different functional chain ends (amino, carboxylic and epoxy groups) were synthesized by conventional approaches. Solubility of PDMS in both the monomers (styrene (St) or methyl methacrylate (MMA)) and water as well as their surface-active properties at the water-toluene interface were investigated. Heterophase polymerization of St and MMA was carried out in the presence of functional PMDS and the resulting suspensions of polymeric microspheres were characterized using scanning electron microscopy (SEM). It was shown that the polymeric suspensions obtained have a very narrow particle size distribution and high stability in electrolyte solutions. The mechanism of the interfacial layer formation which explains the observed results is proposed.