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Can I read The Effects of Reaction Conditions on the Synthetics and Properties of Polypyromellitimide on EtoBox?
The Effects of Reaction Conditions on the Synthetics and Properties of Polypyromellitimide by K.E. Nien; M.H. Yang; T.J. Chu is a Materials Science article available to read on EtoBox.
What is The Effects of Reaction Conditions on the Synthetics and Properties of Polypyromellitimide about?
Polypyromellitimide polymers have been prepared in a two-step process by polymerizing pyromellitic dianhydride with different molar ratios of diisocyanates, toluene 2,4-diisocyanate (TDI) and methylenediphenylene 4,4'-diisocyanate (MDI), in dimethylformamide. Intentionally adding water to the reaction medium to study the effect of adventitious water on the formation of polymer, it was found that the presence of water has an important influence upon the molecular weight of the polymer formed. Moreover, thermal cyclodehydration of polyamic acids results in the \* To whom correspondence should be addressed 23 Vol. 17, No. 1, 1997 The Effects of React on and Conditions on Synthesis and Properties of Polypyromellilimide corresponding polypyromellitimides. The polymers are characterized by mechanical strength and thermal stability.
Who reads The Effects of Reaction Conditions on the Synthetics and Properties of Polypyromellitimide?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- K.E. Nien; M.H. Yang; T.J. Chu
- Publisher
- Walter de Gruyter GmbH
- Published
- 1997
- Language
- EN
- Field
- Materials Science (Physical Sciences)