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Regular network polyesters from benzenepolycarboxylic acids and glycol

โœ Scribed by Tsuyoshi Kiyotsukuri; Nobuhisa Takemoto; Naoto Tsutsumi; Wataru Sakai; Minoru Nagata


Book ID
103354080
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
521 KB
Volume
36
Category
Article
ISSN
0032-3861

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Novel regular network polyester films fr
โœ Tsuyoshi Kiyotsukuri; Naoto Tsutsumi; Ying-Hsien Chen ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 470 KB

## Abstract Novel regular network polyester films were prepared from benzenetricarboxylic acids of trimesic (Y) and trimellitic (Z) acids, and glycols of ethylene (2G), tetramethylene (4G), and hexamethylene (6G) glycols. Prepolymers prepared by melt polycondensation for a short period within 1 h w

Network Copolyesters from Benzenepolycar
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Network copolyesters were prepared from trimesic (Y), pyromellitic (X) or mellitic (YH) acids and 1,6-hexanediol(6G). Prepolymers prepared by meltpolycondensation were cast from dimethylformamide solution and postpolymerized at 260ยฐC for 6 h to form a network. The resultant films were transparent, f

Hydrolytic degradation characteristics o
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During the past decade, important advances have been made in the understanding of the hydrolytic degradation characteristics of aliphatic polyesters derived from lactic acid (LA) and glycolic acid (GA). Degradation of large poly(LAGA) (PLAGA) polymers is autocatalyzed by carboxyl end groups initiall