Poly (acrylonitrile - co-1-vinylimidazole): A new melt processable carbon fiber precursor

被引：46

作者：

Deng, Wenjin ^{[1
]}

Lobovsky, Alexander ^{[2
]}

Iacono, Scott T. ^{[1
]}

Wu, Tianyu ^{[4
]}

Tomar, Neetu ^{[1
]}

Budy, Stephen M. ^{[1
]}

Long, Timothy ^{[4
]}

Hoffman, Wesley P. ^{[3
]}

Smith, Dennis W., Jr. ^{[1
]}

机构：

[1] Clemson Univ, Dept Chem, Clemson, SC 29634 USA

[2] Adv Fiber Engn LLC, Westfield, NJ 07090 USA

[3] USAF, AFMC AFRL RZSM, Res Lab, Edwards AFB, CA 93524 USA

[4] Virginia Tech, Dept Chem, Macromol & Interfaces Inst, Blacksburg, VA 24061 USA

来源：

POLYMER | 2011年 / 52卷 / 03期

关键词：

Carbon fiber precursor; Thermal cross-linking; Melt processable; THERMAL STABILIZATION; ACRYLIC PRECURSORS; POLYACRYLONITRILE; COPOLYMERS; BEHAVIOR; POLYMERIZATION; KINETICS; MONOMER;

D O I：

10.1016/j.polymer.2010.11.054

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Acrylonitrile/1-vinylimidazole (AN/VIM) copolymers containing various mol% of VIM were synthesized by free radical solution polymerization. The copolymers were characterized by Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy, H-1 NMR spectroscopy, gel permeation chromatography (GPC) and differential scanning calorimetry (DSC). Char yields of the copolymers were 40-48% as determined by thermogravimetric analysis (TGA) while gel fractions were found to be 90 -99% depending upon the composition, temperature and time. The complex viscosity of the precursor copolymers was measured as a function of composition and temperature. 82/18 mol% of AN/VIM copolymer based carbon fiber precursor was successfully processed by solvent-free melt spinning at 192 degrees C and the melt-spun fiber was characterized by DSC, ATR-IR, and X-ray Diffraction (XRD). (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：622 / 628

页数：7

共 43 条

[1] SOLID STATE STRUCTURE AND GLASS TRANSITIONS IN POLYACRYLONITRILE - HETERO-BONDED SOLID STATE [J].