Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Synthesis and Moisture Transport Properties of Segmented Copolyetherester Based on Poly(propylene glycol) and Poly(butylene 2,6-naphthalenedicarboxylate)

Poly(butylene 2,6-naphthalenedicarboxylate)/Poly(propylene glycol) 공중합체의 합성과 투습도 평가

  • Park, Woo-Lee (Department of Textile Engineering, College of Engineering, Dankook University) ;
  • Yoon, Kee-Jong (Department of Textile Engineering, College of Engineering, Dankook University)
  • 박우리 (단국대학교 섬유공학과) ;
  • 윤기종 (단국대학교 섬유공학과)
  • Published : 2008.06.30
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Abstract

Segmented block poly(ether-ester) containing poly(propylene glycol), PPG, soft segments and Poly(butylene 2,6-naphthalenedicarboxylate), PBN, hard segments were prepared by transesterification and polycondensation. Synthesis of the PBN/PPG copolymer were confirmed by $^1H$-NMR. Thermal behavior was measured by DSC and TGA. Permeability measurements of PBN/PPG copolymer films were made using an upright cup method. Although $T_m\;and\;T_c$ of PBN/PPG copolymer decreased slightly with increase in PPG composition in the PBN/PPG copolymer, their melting points are in excess of $200^{\circ}C$ which is required for firefighter's protective clothing. The moisture vapor transmission rate(MVTR) increased with addition in the amount of PPG and rising of temperature significantly. But the reduction in density due to the introduction of PPG instead of poly(ethylene glycol), PEG, as the soft segment did not influence MVTR, and the MVTR values were lower compared with commercial breathable films.

Keywords

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