Structure and Properties of Water-Soluble Polyester

Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (5): 59-61.

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Structure and Properties of Water-Soluble Polyester

Ying Zongrong¹, Wu Dacheng²

1. Department of Polymer Material, Nanjing University of Science & Technology, Nanjing 210094;
2. Textile College, Sichuan Union University, Chengdu

Received:1997-12-29 Revised:1998-05-27 Published:1998-10-10 Online:1998-10-10

Abstract

Abstract: The molecular structure of a water-soluble polyester prepared by copolycondensation of dimethyl terephthalate, isophthalic acid, dimethyl isophathalate-5-sulfonic sodium with ethylene glycol, etc. and its thermal, crystal and rheological properties, as well as polyelectrolyte effect have been investigated by IR, ¹H NMR and rheometric techniques. The water soluble polyester is found to be amorphous with glass temperature being 43.0 ℃ and softing point 129.7 ℃. Its melt has a shear thinning feature and shows a polyelectrolyte effect in solvents with high dielectric constant.

Key words: water-soluble polyester, structure characterization, thermal property, crystal property, rheological property, polyelectrolyte effect

Ying Zongrong, Wu Dacheng. Structure and Properties of Water-Soluble Polyester[J]. Chinese Journal of Applied Chemistry, 1998, 0(5): 59-61.

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Structure and Properties of Water-Soluble Polyester

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