Macromolecular Research, Vol.16, No.3, 247-252, April, 2008
Polymer Electrolytes Based on Poly(vinylidenefluoride-hexafluoropropylene) and Cyanoresin
E-mail:
Lithium gel electrolytes based on a mixed polymer matrix consisting of poly(vinylidenefluoride-hexafluoropropylene) (PVDF-HFP) and cyanoresin type M (CRM) were prepared using an in situ blending process. The CRM used in this study was a copolymer of cyanoethyl pullulan and cyanoethyl poly(vinyl alcohol) (PVA) with a mole ratio of 1:1. The mixed plasticizer was ethylene carbonate (EC) and propylene carbonate (PC) with a volume ratio of 1:1. In this study, the presence of PVDF in the electrolytes helps to form a dimensionally stable film over a broad composition range, and decreases the viscosity. In addition, it provides better rheological properties that are suitable for the extrusion of thin films. However, the presence of HFP has a positive effect on generating an amorphous domain in a crystalline PVDF structure. The ionic conductivity of the polymer electrolytes was investigated in the range 298-333 K. The introduction of CRM into the PVDF-HFP/LiPF6 complex produced a PVDF-HFP/CRM/LiPF6 complex with a higher ionic conductivity and improved thermal stability and dynamic mechanical properties than a simple PVDF-HFP/LiPF6 complex .
- MacCallum JR, Vincent CA, Polymer Electrolyte Reviews, Elsevier, London (1987)
- Oh KW, Park HJ, Kim SH, J. Appl. Polym. Sci., 88(5), 1225 (2003)
- Scrosati B, Applications of Electroactive Polymers, Chapman & Hall, London (1993)
- Kim SH, Choi JK, Bae YC, J. Appl. Polym. Sci., 81(4), 948 (2001)
- Oh KW, Park HJ, Kim SH, J. Appl. Polym. Sci., 91, 3659 (2004)
- Kim SH, Oh KW, Bahk JH, J. Appl. Polym. Sci., 91, 4064 (2004)
- Oh KW, Kim SH, Bahk JH, J. Korean Fiber Soc., 39, 757 (2002)
- Oh KW, J. Korean Fiber Soc., 38, 309 (2001)
- Han EG, Kim EA, Oh KW, J. Korean Fiber Soc., 35, 515 (1998)
- Won J, Lee KM, Kang YS, Chang SK, Kim CK, Kim CK, Macromol. Res., 14(4), 404 (2006)
- Lee CW, Park HS, Kim JG, Gong MS, Macromol. Res., 13(2), 96 (2005)
- Baughman RH, Macromol. Chem. Macromol. Symp., 51, 193 (1991)
- Pei Q, Inganas O, Synth. Met., 55, 3718 (1993)
- Otero TF, Angulo E, Rodriguez J, Santamaria C, Electroanal Chem., 34, 369 (1992)
- Otero TF, Rodriguez J, Angulo E, Santamaria C, Synth. Met., 55, 3713 (1993)
- Mazzoldi A, Degl’ Innocenti C, Michelucci M, De Rossi D, Mater. Sci. Eng., 6, 65 (1998)
- Yamada K, Kume Y, Tabe H, Jpn. J. Appl. Phys., 37, 5798 (1998)
- Lewis TW, Spink GM, Wallance GG, De Rossi D, Pachetti M, Polym. Prepr, 38, 520 (1997)
- Tarascon JM, Gozdz AS, Shmutz C, Schokoohi F, Warren PC, Solid State Ion., 49, 860 (1996)
- Song JY, Wang YY, Wan CC, J. Power Sources, 77(2), 183 (1999)
- Kim SH, Oh KW, Kim TK, J. Appl. Polym. Sci., 96(4), 1035 (2005)
- Immanuel Selvaraj I, Chaklanobis S, Chandrasekhar VJ, Electrochem. Soc., 142, 366 (1995)
- Almdal K, Dyre J, Hvdit S, Kramer O, Poly. Gel Netw., 1, 5 (1993)
- Doyle CD, Anal. Chem., 33, 77 (1961)