Polyethylene-g-poly(cyclohexene oxide) by Mechanistic Transformation from ROMP to Visible Light-Induced Free Radical Promoted Cationic Polymerization

被引：33

作者：

Ciftci, Mustafa ^{[1
]}

Kork, Senem ^{[1
]}

Xu, Guangjuan ^{[2
]}

Buchmeiser, Michael R. ^{[2
]}

Yagci, Yusuf ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey

[2] Univ Stuttgart, Inst Polymer Chem, D-70550 Denkendorf, Germany

来源：

MACROMOLECULES | 2015年 / 48卷 / 06期

关键词：

BLOCK-COPOLYMERS; METHYL ACRYLATE; FUNCTIONAL POLYOLEFINS; POLYETHYLENE FILM; MOLECULAR BRUSHES; GRAFT-COPOLYMERS; VINYL-ACETATE; COMBINATION; SYSTEM; INITIATORS;

D O I：

10.1021/acs.macromol.5b00086

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel polymerization mechanism transformation strategy, combining ring-opening metathesis polymerization (ROMP) and visible light induced cationic polymerization, is successfully applied for the synthesis of polyethylene-graft-poly(cyclohexene oxide) (PE-g-PCHO). First, cis-cyclooctene (COE) was polymerized via ROMP in the presence of a chain transfer agent and quantitatively hydrobrominated to give bromo functional polyethylene (PE-Br). Subsequent irradiation of PE-Br in the visible range using dimanganese decacarbonyl (Mn-2(CO)(10)) and diphenyl iodonium hexafluorophosphate (Ph2I+PF6) as radical generator and oxidant, respectively, initiated cationic polymerization of cyclohexene oxide (CHO) resulting in the formation of PE-g-PCHO. The effect of irradiation time and Mn-2(CO)(10) concentration on the grafting density and efficiency was evaluated. Both the precursor polymers and the corresponding graft copolymers were characterized by H-1 NMR and Fourier transform infrared (FT-IR) spectroscopy, gel-permeation chromatography (GPC), and differential scanning calorimetric (DSC) analyses.

引用

页码：1658 / 1663

页数：6

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