Diol Unit가 Copolyester의 열적 성질에 미치는 효과

이선희; 심미자; 김상욱

Journal of the Korean Industrial and Engineering Chemistry, Vol.3, No.3, 464-470, September, 1992

Export Citation

Diol Unit가 Copolyester의 열적 성질에 미치는 효과

The Effect of Diol Unit on the Thermal Properties of Copolyester

이선희, 심미자, 김상욱

초록

PET(polyethylene terephthalate)를 개질하기 위하여 TPA(terephthalic acid)와 EG(ethylene glycol), 그리고 제 3의 단량체로써 pentanediol 이성질체를 사용하였고 EG와 Pentanediol의 양을 변화시키면서 용융 중합법으로 공중합하였다. 공중합물의 구조와 조성을 확인하기 위하여 핵자기공명 스펙트럼(NMR)을 이용하고 DSC와 TGA를 사용하여 구조의 차이와 조성 그리고 고분자쇄의 유연성을 열적 성질로서 고찰하였다.

The copolyester was prepared by melt polycondensation varying the amount of ethylene glycol(EG) and pentanediol from terephthalic acid(TPA), EG and pentanediol isomers were. used as the third monomer. The chemical structure and the compositions of the copolyester were determined by nuclear magnetic resonance spectroscopy. Thermal properties were investigated with the aid of differential scanning calorimetry and thermogravimetric analyzer.

[References]

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[1] Ravindranath K, Mashelkar RA, Chem. Eng. Sci., 42, 2197 (1986)

[2] Heffelfinger CJ, Knox KL, The Science and Technology of Polymer Films, (Edited by Sweething, O.J.), II, Wiley, N.Y., 587 (1971)

[3] Ravindranath K, Mashelkar RA, "Developments in Plastic Technology 2," El-Sevier Applied Science, London, Chap. I (1985)

[4] Lufkin P, Text. Month, 23 (1981)

[5] Arunpal A, Chem. Age Ind., 29, 733 (1987)

[6] Yoda K, Dogyo Kagoku Zashi, 74, 1476 (1971)

[7] Stevenson RW, J. Polym. Sci., 7, 395 (1969)

[8] Maerov SB, J. Polym. Sci. A: Polym. Chem., 7, 4033 (1979)

[9] Tomita K, Kobunshi Rombunshu, 34, 675 (1977)

[10] Ugbolve SCO, Ekpenyon OE, J. Appl. Polym. Sci., 36, 1627 (1988)

[11] Negi YS, Choudhary V, Varma IK, Varma DS, J. Appl. Polym. Sci., 28, 2291 (1983)

[12] Gilding DK, Reed AM, Polymer, 20, 1454 (1979)

[13] Charch WH, Shivers JC, Text. Res. J., 29, 536 (1959)

[14] Coleman O, J. Polym. Sci., 14, 15 (1954)

[15] Ahn TO, Cho KW, Lee SW, Polym.(Korea), 8(6), 415 (1984)

[16] Ahn TO, Hwang TW, Kim JH, Jeong HM, Polym.(Korea), 11(4), 361 (1987)

[17] Ahn TO, Kim JH, Jeong HM, J. Korean Chem. Soc., 32, 276 (1988)

[18] Gorden M, Taylor JS, J. Appl. Chem., 2, 493 (1952)

[19] DiMarzio EA, Gibbs JH, J. Polym. Sci., 11, 121 (1959)

[20] Florjanzyk Z, Depura B, Stein RS, Vogl O, J. Polym. Sci. A: Polym. Chem., 20, 1051 (1982)

[21] Brydson JA, Plastics Materials, p. 59, Butterworths, New York (1988)

[22] Cooney JD, Day M, Wiles DM, J. Appl. Polym. Sci., 28, 2887 (1983)

[23] Flory SH, Trans. Faraday Soc., 51, 848 (1983)

[24] Lee SH, Shim MJ, Kim SW, Korean J. Mater. Res., 2, 101 (1992)