화학공학소재연구정보센터
Polymer(Korea), Vol.14, No.6, 608-614, December, 1990
폴리우레탄 탄성체의 구조와 물성. 2. Hard Segment 구조의 영향
Properties of Polyurethane Elastomer. 2. The Effect of Hard Segment Structure
초록
Poly(tetramethylene glycol) (PTMG). hexamethylene diisocyanate (HDI)/dicyclohexylmethane-4,4''-diisocyanate(H12MDI) 혼합물, 그리고 1,4-butane diol을 사용하여 폴리우레탄 탄성체를 용액 중합하여, 탄성체 내의 hard segment 성분인 HDI/H12MDI feed비와 soft segment인 PTMG의 분자량의 변화에 따른 물성의 변화를 조사하였다. HDI/H12MDI feed 비 값이 클수록, PTMG의 분자량이 클수록 hard segmend와 soft segment의 상분리 정도가 큼을 열적성질, 적외선 분광분석, 강신도 거동에서 관찰할 수 있었다.
Polyurethane elastomers were synthesized from poly(tetramethylene glycol) (PTMG), hexamethylene diisocyanate(HDI)/dicyclohexylmethane-4,4''-diisocyanate(H12MDI) mixture, and 1,4-butane diol by solution polymerization. The physical properties of polyurethane elastomers at various feed ratios of HDI/H12MDI and from PTMG''s of various molecular weights were studied. As the HDI/H12MDI feed ratio and molecular weight of PTMG were increased, phase segregation into two domains of hard segment and soft segment was more evidently shown from thermal properties, infra-red spectroscopy, and tensile properties.
  1. Yamashiro S, Kobunshi Ronbunshu, 45, 535 (1988)
  2. Benson RS, Lyman DJ, J. Polym. Sci. A: Polym. Chem., 26, 1393 (1988) 
  3. Foks J, Janik H, Polym. Eng. Sci., 29, 113 (1989) 
  4. Godovsky YK, Bessonova NP, Mironova NN, Colloid Polym. Sci., 267, 414 (1989) 
  5. Russell D, Urethane Technology, June/July, 19 (1989)
  6. Bengtson B, Feger C, MacKnight WJ, Schneider NS, Polymer, 26, 895 (1985) 
  7. Nierzwicki W, Rutkowska M, Polym. Commun., 27, 327 (1986)
  8. Ahn TO, Lee SY, Lee SW, Jeong HM, Polym.(Korea), 14(5), 497 (1990)
  9. Chan WC, Chen SA, Polymer, 29, 1995 (1988) 
  10. Patel P, Patel M, Suthar BP, Angew. Makromol. Chem., 156, 29 (1988) 
  11. Knaub P, Camberlin Y, J. Appl. Polym. Sci., 32, 5627 (1986) 
  12. Pandya MV, Deshpande DD, Hundiwale DG, J. Appl. Polym. Sci., 32, 4959 (1986) 
  13. vanBogart JWC, Bluemke DA, Cooper SL, Polymer, 22, 1428 (1981) 
  14. Cunliffe AV, Davis A, Farey M, Wright J, Polymer, 26, 301 (1985) 
  15. Takahara A, Tashita J, Kajiyama T, Takayanagi M, MacKnight WJ, Polymer, 26, 987 (1985) 
  16. Koberstein JT, Russell TP, Macromolecules, 19, 714 (1986) 
  17. PaikSung CS, Hu CB, Wu CS, Macromolecules, 13, 111 (1980) 
  18. Wang CB, Cooper SL, Macromolecules, 16, 775 (1983) 
  19. McLennaghan AW, Pethrick RA, Eur. Polym. J., 24, 1063 (1988) 
  20. Brunette CM, Hsu SL, MacKnight WJ, Macromolecules, 15, 71 (1982) 
  21. Koberstein JT, Gancarz I, Clarke TC, J. Polym. Sci. B: Polym. Phys., 24, 2487 (1986)