Publication details
Preparation of polyimides by using mixtures of tetrahydrofuran and methanol and their properties
| Authors | |
|---|---|
| Year of publication | 2002 |
| Type | Article in Periodical |
| Magazine / Source | Polymer Journal |
| MU Faculty or unit | |
| Citation | |
| Field | Macromolecular chemistry |
| Keywords | polyimides |
| Description | Reaction conditions of the prepn. of solns. of polyamic acids in the tetrahydrofuran/methanol mixed solvent (THF/MeOH) were studied. The polyamic acids were based on pyromellitic dianhydride and 4,4'-oxydianiline. Transparent solns. were prepd. at 5% and lower concns. of polyamic acid in the THF/MeOH mixt. with component wt. ratio ranging from 4:1 to 1:1. The properties of the final polyimide films were compared with those prepd. by using N-methyl-2-pyrrolidone as the solvent. |