Ppyroelectricity in Poly(vinylidene fluoride) and Poly(vinylidene fluoride-co-tetrafluoroethylene) Synthesized with Various Initiators

Kim JH; Park TK; Lee H; Lee DJ

Korea Polymer Journal, Vol.3, No.2, 101-105, October, 1995

Kim JH, Park TK, Lee H, Lee DJ

Pyroelectric coefficients of PVDF and P(VDF-TFE) synthesized with di-tert-butyl peroxide (DTBP), ammonium persulfate (APS), or diisopropyl peroxydicarbonate (IPP) as initiator are compared in conjunction with the content of the polar crystalline phase in the polymers. PVDF synthesized with APS shows higher pyroelectricity than PVDF synthesized with DTBP at all temperatures tested. this is due to higher content of β-crystalline phase in PVDF synthesized with APS than that synthesized with DTBP as was revealed by X-ray diffraction and DSC measurements. When synthesized using the same initiator, P(VDF-TFE) always shows higher pyroelectricity than PVDF in the tested range of TFE content. This is also due to the higher β-crystalline content in the copolymer as was revealed by DSC and X-ray diffraction.

[References]

Kawai, Jpn. J. Appl. Phys., 8, 875 (1969)
Bergman JG, McFee JH, Crane GR, Appl. Phys. Lett., 18, 203 (1971)
Lee H, Salomon RE, Labes MM, Macromolecules, 11, 171 (1978)
Lovinger AJ, Macromolecules, 18, 910 (1985)
Takahashi N, Odajima A, Jpn. J. Appl. Phys., 20, L59 (1980)
Takahashi N, Odajima A, Ferroelectrics, 32, 49 (1981)
Hasegawa R, Takahashi Y, Chatani Y, Tadokoro H, Polym. J., 3, 600 (1972)
Weinhold S, Litt MH, Lando JB, Macromolecules, 13, 1178 (1980)
Bachmann MA, Gordon WL, Weinhold S, Lando JB, J. Appl. Phys., 51, 5095 (1980)
Lovinger AJ, Developments in Crystalline Polymers-I, ed. D.C. Besset, Applied Science Publishers, London (1982)
Doll WW, Lando JB, J. Macromol. Sci.-Phys., 4, 309 (1970)
Doll WW, Lando JB, J. Macromol. Sci.-Phys., 4, 897 (1970)
Lando JB, Doll WW, J. Macromol. Sci.-Phys., 2, 205 (1968)
Galperin EL, Dudov SS, Volkova EV, Mlenik MP, Bulygina LA, Vysokomol. Soedin, 8, 2033 (1966)
Kim CY, Park TK, Chung MJ, Kim JH, Lee JW, Chai SH, Hong JY, Research Report N613(2)-3867-6, Korea Institute of Science and Technology (1990)
Baise A, Lee H, Oh B, Salomon RE, Labes MM, Appl. Phys. Lett., 26, 428 (1975)
Lee DJ, Thesis for MS Degree, Sogang University (1991)
Davis GT, McKinney JE, Broadhurst MG, Roth SC, J. Appl. Phys., 49, 4998 (1978)

[Referenced By]

[1] Kawai, Jpn. J. Appl. Phys., 8, 875 (1969)

[2] Bergman JG, McFee JH, Crane GR, Appl. Phys. Lett., 18, 203 (1971)

[3] Lee H, Salomon RE, Labes MM, Macromolecules, 11, 171 (1978)

[4] Lovinger AJ, Macromolecules, 18, 910 (1985)

[5] Takahashi N, Odajima A, Jpn. J. Appl. Phys., 20, L59 (1980)

[6] Takahashi N, Odajima A, Ferroelectrics, 32, 49 (1981)

[7] Hasegawa R, Takahashi Y, Chatani Y, Tadokoro H, Polym. J., 3, 600 (1972)

[8] Weinhold S, Litt MH, Lando JB, Macromolecules, 13, 1178 (1980)

[9] Bachmann MA, Gordon WL, Weinhold S, Lando JB, J. Appl. Phys., 51, 5095 (1980)

[10] Lovinger AJ, Developments in Crystalline Polymers-I, ed. D.C. Besset, Applied Science Publishers, London (1982)

[11] Doll WW, Lando JB, J. Macromol. Sci.-Phys., 4, 309 (1970)

[12] Doll WW, Lando JB, J. Macromol. Sci.-Phys., 4, 897 (1970)

[13] Lando JB, Doll WW, J. Macromol. Sci.-Phys., 2, 205 (1968)

[14] Galperin EL, Dudov SS, Volkova EV, Mlenik MP, Bulygina LA, Vysokomol. Soedin, 8, 2033 (1966)

[15] Kim CY, Park TK, Chung MJ, Kim JH, Lee JW, Chai SH, Hong JY, Research Report N613(2)-3867-6, Korea Institute of Science and Technology (1990)

[16] Baise A, Lee H, Oh B, Salomon RE, Labes MM, Appl. Phys. Lett., 26, 428 (1975)

[17] Lee DJ, Thesis for MS Degree, Sogang University (1991)

[18] Davis GT, McKinney JE, Broadhurst MG, Roth SC, J. Appl. Phys., 49, 4998 (1978)