The effect of POSS-based block copolymer as compatibilizer on POSS/epoxy composites

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	The effect of POSS-based block copolymer as compatibilizer on POSS/epoxy composites
	Xu, Yiting ; Li, Cong ; Chen, Min ; Xie, Jianjie ; Cao, Ying ; Deng, Yuanming ; Yuan, Conghui ; Dai, Lizong ; Xu YT(许一婷) ; Dai LZ(戴李宗)
刊名	http://dx.doi.org/10.1557/jmr.2014.364
	2014
关键词	Block copolymers Brittle fracture Compatibilizers Copolymers Epoxy resins Fracture Fracture mechanics Free radical polymerization Nanocomposites Phase separation Thermoanalysis
英文摘要	In this study, a novel hybrid block copolymer containing POSS (BCP), poly(methacrylisobutyl-POSS)-b-poly(methylmethacrylate) (PMAiBuPOSS-b-PMMA) was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. The structure and molecular weight were characterized via 1H NMR and GPC. BCP was creatively used as the compatibilizer to overcome the bad compatibility of epoxy and POSS in their blend system. SEM and dynamic mechanical thermal analyses (DMTA) were used to observe the surface morphology and thermal-mechanical behaviors of the resultant products. We found that the amount of microaggregation domains of POSS decreased, while the nano ones increased, when BCP content increased. All the aggregation domains were distributed in epoxy matrix uniformly at nanoscale with the addition of 10 phr BCP and 5 phr POSS monomers. The results indicated that BCP could effectively improve the compatibility between epoxy resin and POSS owing to its amphiphilicity in DGEBA. The fracture behavior of products transformed from brittle fracture to ductile fracture gradually with the increase of BCP, whereas the T g and E′ decreased. ? 2015 Materials Research Society.
语种	英语
出版者	Cambridge University Press
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87418]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Xu, Yiting,Li, Cong,Chen, Min,et al. The effect of POSS-based block copolymer as compatibilizer on POSS/epoxy composites[J]. http://dx.doi.org/10.1557/jmr.2014.364,2014.
APA	Xu, Yiting.,Li, Cong.,Chen, Min.,Xie, Jianjie.,Cao, Ying.,...&戴李宗.(2014).The effect of POSS-based block copolymer as compatibilizer on POSS/epoxy composites.http://dx.doi.org/10.1557/jmr.2014.364.
MLA	Xu, Yiting,et al."The effect of POSS-based block copolymer as compatibilizer on POSS/epoxy composites".http://dx.doi.org/10.1557/jmr.2014.364 (2014).