Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Thermal Properties and Crystallization Behavior in the Blends of Segmented Block Copolyetheresters Based on Poly(butylene terephthalate) and Poly(tetramethylene ether glycol)(II) Effect of Annealing Condition and Cooling Rate on the Crystallization Behavior-

폴리부틸렌테레프탈레이트 및 폴리테트라메틸렌에테르글리콜 구조를 갖는 세그멘트화 블록 코폴리에테르에스테르 블렌드의 열적성질 및 결정화 거동(II)-열처리조건 및 냉각속도가 결정화거동에 미치는 영향-

  • 백두현 (충남대학교 공과대학 섬유공학과) ;
  • 이민성 (충남대학교 공과대학 섬유공학과)
  • Published : 1995.02.01

⟨ Previous Next ⟩

Abstract

Segmented block copolyetheresters based on poly(butylene terephthalate) and poly(tetramethylene ether glycol) with various hard segment contents(HSC) were synthesized and flour kinds of blends were prepared by melt blending these copolymers with each other by 1 : 1 blend ratio. The investigation of the effect of annealing on the crystallization of the solid samples confirmed the previous supposition that crystallization behavior of high HSC polymer governed the overall crystallization in the blends and the low HSC polymer participated in the crystallization of the high HSC crystal as a form of secondary crystallization. The amount of secondary crystallization due to hard segments of the low HSC component polymer which were confined to the main crystal increased with the cooling rate. The crystallization rate of the blend was always greater than those of the component polymers. For the blend and copolymer samples with the similar HSC, the blends always showed higher crystallization rate. The effect of hard segment length distribution on the crystallization rate was also discussed.

Keywords

References

  1. Angew. Makromol. Chem. v.29 no.30 G.K.Hoeschele;W.K.Witsiepe
  2. Adv. Chem. Ser. v.129 W.K.Witsiepe
  3. Makromol. Chem. v.182 L.L.Zhu;G.Wegner
  4. Kolloid Z. Z. Polym. v.261 U.Bandara;M.Droescher
  5. Macromolecules v.8 R.W.Seymour;J.R.Overton;L.S.Corley
  6. J. Appl. Polym. Sci. v.41 G.C.Richeson;J.E.Spuiel
  7. J. Kor. Fiber Soc. D.H.Baik;B.Y.Jeon
  8. J. Kor. Fiber Soc. v.31 D.H.Baik;M.S.Lee;B.Y.Jeon;M.S.Han
  9. Polymer v.26 R.M.Briber;E.L.Thomas
  10. Polymer-Polymer Miscibility O. Olabisi;L.M.Robeson;M.T.Shaw
  11. Advances in Chemistry Series 211 Multicomponent Polymer Materials J.P.Runt;L.M.Martynowicz;D.R.Paul;L.H.Sperling(ed.)
  12. Two-Phase Polymer Systems V.M.Nadkarin;J.P.Jog;L.A.Utracki(ed.)
  13. Polym. Eng. Sci. v.33 L.Y.Yang;T.G.Smith
  14. D.H.Baik
  15. Macromoleules v.7 L.H.Peebles
  16. J.Polym. Sci. Poluym. Symp. v.42 R.J.Cella