Preliminary evaluation of polyesters with pendent adamantyl groups synthesized from 5-adamantylisophthalic acid and 1,4-butanediol
Polymers and High Performance Materials
Adamantane-containing polyesters were prepared from dimethyl 5-adamantylisophthalate and 1,4-butanediol using melt polymerization catalyzed by titanium isopropoxide. The adamantyl group caused a large increase in T-g (of 80 to 142 degrees C) by inhibiting chain segmental motion in these flexible chain polymers. Surprisingly, the copolymer with 25 mol% dimethyl 5-adamantylisophthalate displayed semi-crystalline behavior as confirmed by DSC and X-ray diffraction results. The amorphous copolymers were soluble in chloroform and methylene chloride while the semicrystalline material was not.
Mathias, L. J.
(1997). Preliminary evaluation of polyesters with pendent adamantyl groups synthesized from 5-adamantylisophthalic acid and 1,4-butanediol. POLYMER BULLETIN, 39(1), 15-20.
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