Research Progress on Preparation Methods of PMIA Fiber

Abstract:

PMIA is a functional fiber with superior heat-resistance, flame resistance, high temperature dimensional stability and electrical insulation. In PMIA crystal structure, there exist hydrogen bonds between two planes in the crystal and they are arranged in grid. The strong interactions between hydrogen bonds result in a very stable chemical structure of PMIA. Owing to lower internal rotation potential energy than PPTA, PMIA molecular chains are flexible structures and its elastic modulus is in the same level as other flexible macromolecules. In this paper, the structure character of molecular chain and performance of PMIA have been introduced. Additionally, the common used polymerization techniques for PMIA have been described in detail. These synthesis techniques include low-temperature solution polymerization, interfacial polymerization and emulsion polymerization.

• Periodical: Advanced Materials Research (Volumes 463-464)
• Pages: 769-772
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.463-464.769
• Online since: February 2012
• Authors: Shao Gui Wu, Ya Ru Fan, Jun Zhou
• Keywords: Aramid Fiber, Interfacial Polymerization, PMIA

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