Fabrication and Evaluation of New Resins. Volume 1. Synthesis of Para- Ordered Aromatic Polymers
Annual rept. no. 2, Feb 1977-Feb 1978
SRI INTERNATIONAL MENLO PARK CA
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Four potential aromatic rodlike polymer systems were screened for potential use in ordered polymer films. High molecular weight polybenzobisthiazoles were prepared from a new monomer, 2.5- diaminodithiohydroquinone dihydrochloride. The isomeric polybenzobisthiazoles from 4.6-diaminodithioresorcinol dihydrochloride were obtained with low molecular weights due to monomer instability. Poly3.5- diphenylbenzobisimidazoles were obtained by a two step procedure.
- Polymer Chemistry