Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Effects of Molecular Weight of Poly(ethylene glycol) on the Thermal Properties and the Alkaline Hydrolysis of Copolyesters

폴리에틸렌글리콜의 분자량이 공중합 폴리에스터의 열적 특성 및 알칼리 가수분해에 미치는 영향

  • Kim, Young-June (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Jee, Min-Ho (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Lee, Eun-Hee (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Choi, Jin-Uk (KOLON FM Research Center) ;
  • Noh, Dong-Hyun (KOLON FM Research Center) ;
  • Rho, Hwan-Kwon (KOLON FM Research Center) ;
  • Baik, Doo-Hyun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
  • 김영준 (충남대학교 유기소재.섬유시스템공학과) ;
  • 지민호 (충남대학교 유기소재.섬유시스템공학과) ;
  • 이은희 (충남대학교 유기소재.섬유시스템공학과) ;
  • 최진욱 (코오롱 FM 연구소) ;
  • 노동현 (코오롱 FM 연구소) ;
  • 노환권 (코오롱 FM 연구소) ;
  • 백두현 (충남대학교 유기소재.섬유시스템공학과)
  • Received : 2012.01.03
  • Accepted : 2012.02.02
  • Published : 2012.02.28
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Abstract

Copolyesters containing sodium sulfonate group and poly(ethylene glycol) (PEG) were synthesized with various molecular weight of PEG. The selected molecular weights of PEG were 1000, 2000, 4000, 6000, and 16000. The thermal properties and the crystallization behaviors of the copolyesters were investigated by using differential scanning calorimeter (DSC). Alkaline hydrolysis of the copolyesters was studied as a function of the treatment time. The melting temperatures and the heats of fusion of the copolyesters increased with an increase in the PEG molecular weight, while the weight reduction rate of copolyesters in an alkaline solution decreased with an increase in the PEG molecular weight. At the same PEG content in copolyesters, hard segment length increases with the PEG molecular weight, which was thought to be the most important factor that determines the thermal properties and the alkaline hydrolysis behavior.

Keywords

References

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