Abstract
Thermal study of high-energy electron-irradiation binary blends of ferroelectric P(VDF–TrFE) copolymers has been investigated by X-ray diffraction, differential scanning calorimetry (DSC) and thermally stimulated depolarization current (TSDC). X-ray diffraction shows some degree of mixing inside a crystal lattice due to significant changes in the ferroelectric-to-paraelectric phase transition behavior from all-trans to trans-gauche conformation in nanometer range after irradiation. In DSC thermograms, it is found that both the Curie temperature and melting temperature decrease with the dose and that the F–P transition temperatures and enthalpies of two individual copolymers and the blend merge into one with the increase of dose, indicating that there exists a strong lattice coupling between the two copolymers. The peaks observed in TSDC spectra of the blends exhibit the phase transitional characters of the parent copolymers which demonstrates that the miscibility in the crystalline region for their large compositional discrepancy. The distribution of temperature peaks in TSDC also show that the existence of two types of crystallite in the blend which become more clear after irradiation, confirming the X-ray and DSC results.
Similar content being viewed by others
References
Tanaka H, Lovinger AJ (1987) Macromolecules 20:2640
Natta G, Allegra G, Bassi IW, Sianesi D, Caporiccio G, Torti E (1965) J Polym Sci A 3:4263
Tanaka H, Lovinger AJ, Davis DD (1990) J Polym Sci Polym Phys Ed 28:2183
Doll WW, Lando JB (1970) J Macromol Sci B 4:897
Lovinger AJ, Furukawa T, Davis GT, Broadhurst MG (1983) Polymer 24:1225
Chen G, Fouracre RA, Banford HM, Tedford DJ (1991) Radiat Phys Chem 37:523
Lovinger AJ, Davis GT, Furukawa T, Broadhurst MG (1982) Macromolecules 15:323
Tashiro K, Tanka K, Kobayashi M, Chatani Y, Tadakoro H (1981) Ibid 22:1312
Furukawa T, Johnson GE (1981) J Appl Phys 52:940
Lovinger AJ, Davis DD, Cais RE, Jometani JM (1988) Macromolecules 21:78
Daudin B, Dubus M, Legrand JF (1987) J Appl Phys 62:994
Kepler RG, Anderson RA (1978) J Appl Phys 49:1232
Furukawa T, Wen JX, Suzuki K, Takashina Y, Date M (1984) J Appl Phys 56:829
Lovinger AJ (1985) Macromolecules 18:910
Odajima A, Takase Y, Ishibashi T, Yusa K (1985) Jpn J Appl Phys 24(Suppl):881
Zhang QM, Bharti V, Zhao X (1998) Science 280:2101
Zhao X-Z, Bharti V, Zhang QM (1998) Appl Phys Lett 73:2054
Wittmann JC, Manley RSJ (1977) J Polym Sci Polym Phys Ed 15:1089
Hodge AM, Kiss G, Lotz B, Wittmann JC (1982) Polymer 23:985
Peng Z, Liu D, Hu S, Zhou Y, Zhang X (1998) Comp Appl Chem 15:248
Lovinger AJ (1983) Science 220:1115
Ohigashi H, Koga K, Suzuki M, Nakanishi T, Kimura K, Hashimoto N (1984) Ferroelectrics 60:263
Fermandez MV, Suzki A, Chiba A (1987) Macromolecules 20:1806
Guo SS, Sun XH, Wang SX, Xu S, Zhao XZ, Chan HLW (2005) Mater Chem Phys 91:348
Warren BE (1990) X-ray diffraction. Dover Publication, New York
Cheng Z-Y et al (2002) Macromolecules 35:664
Gregorio JRR, Botta MM (1998) J Polym Sci Polym Phys Ed 36:403
Zhang XY, Peng Z, Chan HLW (2001) Ferroelectrics 264:15
Womes M, Bihler E, Eisenmenger W (1989) IEEE Trans Electron Insul 24:461
Faria RM, Neto JMG, Olivelra ON Jr (1994) J Phys D Appl Phys 27:611
Acknowledgements
This work was supported by the Centre for Smart Materials of The Hong Kong Polytechnic University. It was also supported in part by the National Natural Science Foundation of China under Grant No. 50125309, Project of Education Ministry (01115), and the Hong Kong Research Grants Council (PolyU 5147/02E)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Guo, S.S., Sun, C.L., Wu, T.S. et al. Thermal study on structural changes and phase transition in high-energy electron-irradiated blends of P(VDF–TrFE) copolymers. J Mater Sci 42, 1184–1189 (2007). https://doi.org/10.1007/s10853-006-1439-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-006-1439-z