TY - JOUR
AU1 - Hsiue, Lin‐Tee
AU2 - Ma, Chen‐Chi M.
AU3 - Tsai, Hong‐Bing
AB - Block copolyetheresters 1 with poly(pentamethylene p,p′‐bibenzoate) segments and poly(ethylene oxide) segments were prepared by melt polycondensation of dimethyl p,p′‐bibenzoate, 1,5‐pentanediol, and poly(ethylene glycol) (PEG) with molecular weights of 400, 1 000, or 2 000. The 1H NMR analysis shows that the feed mole ratio of PEG to dimethyl p,p′‐bibenzoate determines the composition of the block copolyetheresters. The differential scanning calorimetry (DSC) results indicate that some block copolyetheresters exhibit a monotropic smectic liquid‐crystalline phase due to the poly(pentamethylene p,p′‐bibenzoate) segments. The transitions depend on the content and the molecular weight of the PEG. The block copolyetheresters 1 show high water absorption due to the hydrophilic nature of the poly(ethylene oxide) segments. The water absorption increases with increasing PEG content. As the molecular weight of PEG increases, the water absorption increases significantly.
TI - Hydrophilic thermotropic block copolyetheresters with poly(pentamethylene p,p′‐bibenzoate) segments
JF - Macromolecular Chemistry and Physics
DO - 10.1002/macp.1995.021961103
DA - 1995-11-01
UR - https://www.deepdyve.com/lp/wiley/hydrophilic-thermotropic-block-copolyetheresters-with-poly-4Vcw3IYBZ6
SP - 3459
EP - 3468
VL - 196
IS - 11
DP - DeepDyve
ER -