Cyclic poly(vinylcarbazole) via ring-expansion polymerization-RAFT (REP-RAFT)

被引：24

作者：

Bunha, Ajaykumar ^{[1
]}

Cao, Peng-Fei ^{[1
]}

Mangadlao, Joey Dacula ^{[1
]}

Advincula, Rigoberto C. ^{[1
]}

机构：

[1] Case Western Reserve Univ, Cleveland, OH 44106 USA

来源：

REACTIVE & FUNCTIONAL POLYMERS | 2014年 / 80卷

基金：

美国国家科学基金会;

关键词：

Ring-expansion polymerization; Cyclic RAFT initiator; N-vinylcarbazole (NVK); CHAIN-TRANSFER POLYMERIZATION; MACROCYCLIC POLYSTYRENE; CLICK-CHEMISTRY; NMR-SPECTRA; POLYMERS; INITIATOR; POLY(N-VINYLCARBAZOLE); COPOLYMERS; ARCHITECTURES; FLUORESCENCE;

D O I：

10.1016/j.reactfunctpolym.2014.03.001

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this paper, we demonstrate the formation of cyclic poly(vinylcarbazole) via a ring-expansion polymerization reversible addition-fragmentation chain transfer (REP-RAFT). A cyclic dixanthate RAFT chain transfer agent (CTA) was synthesized and employed for controlled free radical polymerization of N-vinylcarbazole (NVK). The molecular weight in relation to polymerization time suggested the formation of a polymer with well-controlled molecular weight and ring size. The obtained macromolecules were characterized by nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS) and dynamic light scattering (DLS). Atomic force microscopy (AFM) was also employed to directly observe the cyclic polymers with different ring sizes. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：33 / 39

页数：7

共 28 条

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