A CALORIMETRIC STUDY OF THE PHASE-TRANSITIONS IN POLY(3-HEXYLTHIOPHENE)

被引：183

作者：

ZHAO, Y ^{[1
]}

YUAN, GX ^{[1
]}

ROCHE, P ^{[1
]}

LECLERC, M ^{[1
]}

机构：

[1] UNIV MONTREAL,DEPT CHIM,MONTREAL,PQ H3C 3J7,CANADA

来源：

POLYMER | 1995年 / 36卷 / 11期

关键词：

POLY(3-HEXYLTHIOPHENE); DSC; PHASE TRANSITIONS;

D O I：

10.1016/0032-3861(95)95298-F

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Differential scanning calorimetry was utilized for investigating the isothermal crystallization of a poly(3-hexylthiophene) (P3HT) sample over a wide range of temperatures. We found two well separated crystal formation processes: a fast process, essentially completed before the sample reaches the isothermal conditions, which produces crystals having higher transition temperatures (at around 178 degrees C), and a slow process which leads to continuous growth of less stable crystals, the transition temperatures of which are determined by the crystallization temperature, namely, about 32 degrees C above. The slow crystallization process occurs at temperatures as low as 40 degrees C. This crystallization behaviour supports the suggestion that a nematic stale exists in the melt of P3HT.

引用

页码：2211 / 2214

页数：4

共 13 条

[1]

Winokur, Spiegel, Kim, Hotta, Heeger, Structural and absorption studies of the thermochromic transition in poly(3-hexylthiophene), Synthetic Metals, 28, (1989)

[2]

Chen, Ni, Macromolecules, 25, (1992)

[3]

Tashiro, Minagawa, Kobayashi, Morita, Kawai, Yoshino, Synth. Met., 55-57, (1993)

[4]

Iwasaki, Fujimoto, Matsuzaki, Synth. Met., 63, (1994)

[5]

Roux, Bergeron, Leclerc, Die Makromolekulare Chemie, 194, (1993)

[6]

Roux, Leclerc, Chem. Mater., 6, (1994)

[7]

Bolognesi, Porzio, Provasoli, Ezquerra, Die Makromolekulare Chemie, 94, (1993)

[8]

Mardalen, Samuelsen, Gautun, Carlsen, X-ray scattering from oriented poly(3-alkylthiophenes), Synthetic Metals, 48, (1992)

[9]

Tashiro, Ono, Minagawa, Kobayashi, Kawai, Yosino, J. Polym. Sci. Polym. Phys. Edn., 29, (1991)

[10]

Gustafsson, Inganas, Osterholm, Laakso, Polymer, 32, (1991)

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