Yoon, KH Cho, HN Park, OO 2024-01-21T14:39:28Z 2024-01-21T14:39:28Z 2021-09-05 1999-12-13 0021-8995 https://pubs.kist.re.kr/handle/201004/141737 Properties of poly(ethylene 2,6-naphthalate) (PEN) and its copolymers containing diethylene glycol (DEG), propanediol (PD), butanediol (BD), and bisphenol A ethoxylate (BSA) were investigated. The copolymer composition was determined by H-1-NMR spectroscopy. It has a higher value than the feed composition due to the high volatility of ethylene glycol (EG). The melting temperature of the copolymers was gradually depressed with the increase of dialcohol in the composition. The complex viscosity of the copolymers did not depend on the molecular weight, but on the chemical structure. The complex viscosity of the copolymers containing 3 mol % of DEG, ED, and 5 mol % of ED was lower than that of PEN, and the mechanical properties were similar with the value of PEN. (C) 1999 John Wiley & Sons, Inc. English JOHN WILEY & SONS INC BLENDS COMPATIBILITY BEHAVIOR Effect of dialcohols on properties of poly(ethylene 2,6-naphthalate) copolymers Article 10.1002/1097-4628(19991213)74:12<2900::AID-APP14>3.0.CO;2-C 1 JOURNAL OF APPLIED POLYMER SCIENCE, v.74, no.12, pp.2900 - 2905 JOURNAL OF APPLIED POLYMER SCIENCE 74 12 2900 2905 scie scopus 000083310300014 2-s2.0-0033348479 Polymer Science Polymer Science Article BLENDS COMPATIBILITY BEHAVIOR poly(ethylene 2,6-naphthalate) copolymer melting temperature complex viscosity mechanical property