Polymer composites prepared by low-temperature post-irradiation polymerization of C2F4 in the presence of graphene-like material: synthesis and characterization

被引：25

作者：

Shulga, Yury M. ^{[1
,3
]}

Vasilets, Victor N. ^{[2
]}

Kiryukhin, Dmitry P. ^{[1
]}

Voylov, Dmitry N. ^{[4
,5
]}

Sokolov, Alexei P. ^{[4
,5
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Region, Russia

[2] Russian Acad Sci, Inst Energy Problems Chem Phys, Chernogolovka 142432, Moscow Region, Russia

[3] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia

[4] Univ Tennessee, Dept Chem, Knoxville, TN 37916 USA

[5] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37830 USA

来源：

RSC ADVANCES | 2015年 / 5卷 / 13期

基金：

俄罗斯基础研究基金会;

关键词：

INDUCED CROSS-LINKING; X-RAY PHOTOELECTRON; GRAPHITE OXIDE; ATOMIC OXYGEN; POLYTETRAFLUOROETHYLENE; CARBON; REDUCTION; POLY(TETRAFLUOROETHYLENE); FUNCTIONALIZATION; PHOTOEMISSION;

D O I：

10.1039/c4ra09074h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polymer polytetrafluoroethylene (PTFE)-microwave exfoliated graphene oxide (MEGO) composites containing up to 80 wt% PTFE were prepared by low-temperature post-irradiation polymerization of C2F4 in the presence of the graphene-like material. Composites were characterized by FTIR, NMR, XPS, SEM, TGA, XRD, broadband dielectric spectroscopy and DSC techniques. The melting point of PTFE in the composite (332.5 degrees C) was higher than that of pure PTFE by 8.8 degrees C. The measured values of the melting enthalpy (Delta H-m = 51.5 and 45.4 J g(-1)) were used to calculate the extent of crystallinity in the PTFE and PTFE-MEGO composite (0.63 and 0.55, respectively). No CF3 end groups typical of commercial PTFE have been detected in the PTFE-MEGO composites.

引用

页码：9865 / 9874

页数：10

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