화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.31, 360-366, November, 2015
DOI10.1016/j.jiec.2015.07.010  Export Citation
Confining polymerization at emulsion interface by surface-initiated atom transfer radical polymerization on reactive Pickering stabilizer
Dezhong Yin†, Wangchang Geng, Qiuyu Zhang1, †, and Baoliang Zhang1
  • School of Science, Northwestern Polytechnical University, Xi’an 710072, China
  • 1Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
E-mail:,
In this paper, surface-initiated atom transfer radical polymerization (SI-ATRP) on surface of Pickering stabilizer for microencapsulation was investigated. By SI-ATRP on initiator-immobilized SiO2 particles, emulsion droplets were involved into microcapsules. The density of PMMA chains on SiO2 surface reached 1.31 chain nm-2 and the initiator efficiency was estimated to be 28%. The results confirmed that polymerization was confined successfully at the interface of emulsion and 80% of polymer chains were formed via SI-ATRP on Pickering stabilizer. This covalent between SiO2 and polymer endowed the prepared microcapsules with good durability and thermal reliability in phase change materials application.
Keywords:Surface-initiated atom transfer radical;polymerization;Pickering emulsion;Microencapsulated phase change materials;Polymerization mechanism
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