Covalent modification of graphene oxide with polynorbornene by surface-initiated ring-opening metathesis polymerization

被引：42

作者：

Zhang, Qiuping ^{[1
]}

Li, Qing-Lan ^{[1
]}

Xiang, Shidong ^{[1
]}

Wang, Yan ^{[1
]}

Wang, Chunyang ^{[1
]}

Jiang, Wei ^{[1
]}

Zhou, Hang ^{[1
]}

Yang, Ying-Wei ^{[1
]}

Tang, Jun ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Supramol Struct & Mat, Coll Chem, Changchun 130012, Jilin, Peoples R China

来源：

POLYMER | 2014年 / 55卷 / 23期

基金：

中国国家自然科学基金;

关键词：

Graphene oxide; Surface-initiated ring-opening metathesis polymerization; Epoxidation; GRAPHITE OXIDE; CARBON NANOTUBES; FACILE SYNTHESIS; SULFONATION; COPOLYMERS; COMPOSITE; SHEETS; ROMP; FUNCTIONALIZATION; DERIVATIVES;

D O I：

10.1016/j.polymer.2014.09.049

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Surface-initiated ring-opening metathesis polymerization (SI-ROMP) was employed to prepare polymer-grafted graphene oxide (GO). Grubbs catalysts were immobilized onto GO surfaces followed by ROMP of norbornene from these active catalyst sites to result in polynorbornene (PNb)-functionalized GO (GO-PNb), whose structure and morphology were fully characterized by FTIR, Raman, NMR, XRD, TGA and SEM. The as-prepared hybrid material of GO-PNb is an intercalated layer structure with an improved solubility in organic solvents. Further epoxidation of double bonds along the PNb chains resulted in the epoxidized PNb-functionalized GO (GO-ePNb). The relatively low and irregular grafting ratio of PNb on GO measured by gravimetry mainly result from the effect of complex GO surfaces and the chain-transfer reactions in the polymerization process. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：6044 / 6050

页数：7

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