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Polyanhydrides, 7 . Soluble polyanhydrides derived from isophthalic acid, 4‐hydroxybenzoic acid and various diphenols
Author(s) -
Kricheldorf Hans R.,
Jürgens Claas
Publication year - 1996
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1996.021970915
Subject(s) - isophthalic acid , condensation polymer , polymer chemistry , intrinsic viscosity , chloroform , glass transition , chemistry , hydroxybenzoic acid , crystallinity , amorphous solid , inherent viscosity , solubility , viscosity , polymer , polyester , terephthalic acid , organic chemistry , materials science , composite material , crystallography
One series of poly(ester‐anhydride)s, PEAs, was prepared by polycondensation of isophthaloyl chloride with mixtures of silylated 4‐hydroxybenzoic acid and various dihydroxy‐substituted naphthalenes. Most of these PEAs are semicrystalline materials with glass transition temperatures ( T g ) in the range of 130−190°C and melting temperatures ( T m ) in the range of 220−350°C. In a second series of PEAs, phenylhydroquinone, bisphenol‐A and 3,3′‐dimethylbisphenol‐A were used as diphenols. All but one PEA of the second series are amorphous materials with good solubility in chloroform and other organic solvents. GPC measurements indicated viscosity‐average molecular weights (M̄ v ) up to 38 000.