Properties of polyamic acid ionomers | Zendy

Yu Xuehai | Zendy; Grady Brian P. | Zendy; Reiner Richard S. | Zendy; Cooper S. L. | Zendy

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Properties of polyamic acid ionomers

Author(s) -

Yu Xuehai,

Grady Brian P.,

Reiner Richard S.,

Cooper S. L.

Publication year - 1993

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1993.070470915

Subject(s) - ionomer , polymer chemistry , phase (matter) , ionic bonding , oligomer , materials science , polymer , neutralization , oxide , chemistry , chemical engineering , polymer science , ion , organic chemistry , composite material , copolymer , antibody , immunology , biology , engineering

Polymers containing amic acid units were produced by reacting an oligomer based on polytetramethylene oxide (PTMO) with 1,2,4,5‐benzenetetracarboxylic dianhydride (BTDA). Neutralization by a metal salt produced amic acid ionomers. Similar to other ionomer systems, neutralization from the acid to the ionomer led to the formation of a separate ionic phase as determined by dynamic mechanical analysis. Phase separation resulted in a substantial increase in mechanical properties. The effect of neutralization level, cation, soft‐segment molecular weight, and soft‐segment end group on mechanical and thermal properties was investigated. © 1993 John Wiley & Sons, Inc.

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