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POLYMERS FROM FUNCTIONALLY-SUBSTITUTED CYCLIC ETHERS AND CYCLIC ACETALS
Abstract
Poly(alkylene oxides) containing pendant carboxylate groups separated from the main chain by a spacer-group of eight methylene units were synthesized from functionally-substituted epoxide and 1,3-dioxolane monomers. Ester-substituted oxyethylene polymers of methyl 10,11-epoxyundecanoate and copolymers with various cyclic ethers were prepared in the presence of an aluminumalkyl-water coordination initiator system modified with acetylacetone. Poly(alkylene oxide) ionomers, polyelectrolytes and carboxylic acids were obtained by reactions on the pendant functional groups. The high molecular weight substituted poly(ethylene oxides) were characterized by spectral, thermal and dilute solution measurements. Oxymethylene polymers containing 0.5-2 mole-percent pendant ester groups were synthesized by the cationic copolymerization of trioxane with methyl 10,11-epoxyundecanoate or 4-(1-carbomethoxynonyl)-1,3-dioxolane. A comparative study of the relative reactivities of the ester-substituted monomers with trioxane was made. The substituted 1,3-dioxolane monomer was shown to be more reactive than the substituted epoxide in ring-opening copolymerization with trioxane. Terpolymers of trioxane and 1,3-dioxolane with each of the two functional monomers were also prepared. The functional polyoxymethylenes were characterized by their spectral properties and thermal degradation behavior.
Subject Area
Polymers
Recommended Citation
BANSLEBEN, DONALD ALBERT, "POLYMERS FROM FUNCTIONALLY-SUBSTITUTED CYCLIC ETHERS AND CYCLIC ACETALS" (1982). Doctoral Dissertations Available from Proquest. AAI8229527.
https://scholarworks.umass.edu/dissertations/AAI8229527