ArticleMaterials (Basel, Switzerland)2025
New (Co)poly(hydroxyimide)s Based on 4,4'-Oxydiphthalic Anhydride-Effect of Composition on Properties, Including Gas Transport Ability.
Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This paper presents novel soluble (co)poly(hydroxyimide)s ((co)PIOH) based on 4,4'-oxydiphthalic anhydride (ODPA), 3,3'-dihydroxybenzidine (HAB), and 3,6-diaminodurene (D) with the 3/1, 1/1, and 1/3 HAB/D ratios. This chemical structure of the compounds provides the possibility of their future modification through the thermal rearrangement (polybenzoxazoles) or functionalization via Mitsunobu reaction (azo side-chain polyimides), i.e., obtaining new materials with interesting properties and therefore with expanded applications. Copolymers were characterized via FTIR, NMR, XRD, and GPC methods to confirm their structure, composition, and molar masses. The effect of copolymer composition on the thermal, mechanical, optical, and permeation properties studied for He, O
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