Title page for ETD etd-02262007-095955


Type of Document Dissertation
Author Kim, Young Jun
URN etd-02262007-095955
Title Kinetic and mechanistic investigations of polyimide formation and characterization of their blends with polybenzimidazoles
Degree PhD
Department Chemistry
Advisory Committee
Advisor Name Title
McGrath, James E. Committee Chair
Dillard, John G. Committee Member
Gibson, Harry W. Committee Member
Riffle, Judy S. Committee Member
Tanko, James M. Committee Member
Keywords
  • Polyimides Synthesis
  • Benzimidazoles.
Date of Defense 1992-03-05
Availability restricted
Abstract

This dissertation describes kinetic and mechanistic studies of high performance polyimide formation, synthesis and characterization of fully cyclized, molecular weight and end group controlled polyimides, and investigations of high performance polymer blends based upon polyimides and polybenzimidazole.

Imidization kinetics were successfully followed by the quantitative non-aqueous titration of the amic acid functional groups as a function of reaction conditions. The homogeneous solution imidization processes were described by auto-acid catalyzed second order kinetics. The effects of heteroatom bridging groups in the diamines and dianhydrides on reaction rates have been investigated and a possible reaction mechanism for the solution imidization processes has been proposed.

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