| 摘要 |
Thermoplastic, non-crosslinked polymer compositions having glutaric anhydride units of the formula: <IMAGE> wherein R represents CH3 or H, process for imidizing said compositions, the resultant imide polymers which are free of methyl imide units, and process of devolatilizing an acrylic or methacrylic acid-containing polymer in an extruder to the corresponding anhydride, and then introducing a reactant selected from the group consisting of ammonia, ammonia generators, primary amine, and primary amine generators.
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