Water-soluble poly(N-vinyl-1,2,4-triazole) star and amphiphilic star block copolymers by RAFT polymerization

被引：14
|
作者：
Mori, Hideharu [1 ,2 ]
Ishikawa, Kazunori [1 ]
Abiko, Yohei [2 ]
Nakabayashi, Kazuhiro [1 ]
Onuma, Atsuhiko [3 ]
Morishima, Makoto [3 ]
机构：
[1] Yamagata Univ, Grad Sch Sci & Engn, Dept Polymer Sci & Engn, Yonezawa, Yamagata 9928510, Japan
[2] Yamagata Univ, Grad Sch Sci & Engn, Dept Organ Device Engn, Yonezawa, Yamagata 9928510, Japan
[3] Hitachi Ltd, Hitachi Res Lab, Hitachi, Ibaraki 3191292, Japan
来源：
POLYMER | 2013年 / 54卷 / 08期
关键词：
Amphiphilic star block copolymer; Reversible addition-fragmentation chain transfer (RAFT) polymerization; Optoelectronic polymer; TRANSFER RADICAL POLYMERIZATION; CHAIN TRANSFER; POLY(VINYL ALCOHOL); MONOMER FAMILY; POLYMERS; CARBAZOLE; ARCHITECTURES; COMBINATION; TRIAZOLE; DESIGN;
D O I：
10.1016/j.polymer.2012.12.033
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Water-soluble star polymers were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of N-vinyl-1,2,4-triazole (NVTri), which is a non-conjugated N-vinyl monomer having an aromatic heterocycle. Four-arm poly(NVTri)s having low polydispersities and controlled molecular weights were obtained using a xanthate-type tetrafunctional chain transfer agent (CTA). Amphiphilic star block copolymers having inner water-soluble segments connected to the core were synthesized by RAFT polymerization of N-vinylcarbazole (NVC) using poly(NVTri) star as a macro-CTA. In contrast, RAFT polymerization of NVTri using poly(NVC) star afforded star block copolymers with block arms consisting of inner optoelectronic poly(NVC) segment and outer hydrophilic poly(NVTri) segment. Assembled structures of these amphiphilic star block copolymers formed in selective solvents and characteristic optoelectronic properties were evaluated by dynamic light scattering (DLS), UV-vis, and fluorescence spectroscopic methods. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：2001 / 2010
页数：10
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