CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Formation of Nanophases in Epoxy Thermosets Containing Amphiphilic Block Copolymers with Linear and Star-like Topologies
Wang, Lei; Zhang, Chongyin; Cong, Houluo; Li, Lei; Zheng, Sixun; Li, Xiuhong; Wang, Jie
2013
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume117Issue:27Pages:CONCATENATE(Sheet1!I132,-Sheet1!J132)
AbstractIn this work, we investigated the:effect of topological structures of block copolymers on the formation of the nanophase in epoxy thermosets containing amphiphilic block copolymers. Two block copolymers composed of poly(epsilon-caprolactone) (PCL) and poly(2,2,2-trifluoroethyl acrylate) (PTFEA) blocks were synthesized to possess linear, and star-shaped topologies. The star-shaped block copolymer composed a polyhedral oligomeric silsesquioxane (POSS) core and eight poly(e-caprolactone)-block-poly (2,2,2-trifluoroethyl acrylate) (PCL-b-PTFEA) diblock copolymer Both block copolymers were synthesized via the combination of ring-opening polymerization and reversible addition-fragmentation chain transfer/macro-Molecular design via the interchange of xanthate (RAFT/MADIX) proces; they were controlled to have identical compositions of copolymerization an lengths of blocks. Upon incorporating both block copolymers into epoxy thermosets, the spherical PTFEA nanophases, were,formed in all the cases. However, the sizes of PTFEA nanophases from the star-like block copolymer were significantly lower than those from the linear diblock copolymer. The difference in the nanostructures gave rise to the different glass transition behavior of the nanostructured thermosets. The dependence of PTFEA nanophases on the topologies of block copolymers is interpreted in terms of the conformation of the miscible subchain (viz. PCL) at the surface of PTFEA microdomains and the restriction of POSS cages on the demixing of the thermoset-philic block (viz. PCL).
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000321884100021
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13755
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Wang, Lei,Zhang, Chongyin,Cong, Houluo,et al. Formation of Nanophases in Epoxy Thermosets Containing Amphiphilic Block Copolymers with Linear and Star-like Topologies[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2013,117(27):CONCATENATE(Sheet1!I132,-Sheet1!J132).
APA Wang, Lei.,Zhang, Chongyin.,Cong, Houluo.,Li, Lei.,Zheng, Sixun.,...&Wang, Jie.(2013).Formation of Nanophases in Epoxy Thermosets Containing Amphiphilic Block Copolymers with Linear and Star-like Topologies.JOURNAL OF PHYSICAL CHEMISTRY B,117(27),CONCATENATE(Sheet1!I132,-Sheet1!J132).
MLA Wang, Lei,et al."Formation of Nanophases in Epoxy Thermosets Containing Amphiphilic Block Copolymers with Linear and Star-like Topologies".JOURNAL OF PHYSICAL CHEMISTRY B 117.27(2013):CONCATENATE(Sheet1!I132,-Sheet1!J132).
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