Structure and Properties of Thermotropic Polyarylate/Polycarbonate Blends Compatibilized by Catalyst-assisted Ester-Carbonate Interchange Reactions 


Vol. 23,  No. 7, pp. 1770-1778, Jul.  2022
10.1007/s12221-022-4228-7


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  Abstract

We herein report the morphology, rheological, thermal, and dynamic mechanical properties of thermotropic polyarylate/polycarbonate (PAR/PC, 70/30 by wt%) blends, which are compatibilized via melt-processing in the presence of different tetrabutylammonium tetraphenylborate catalyst loadings of 0.0-1.0 phr. The electron microscopic images exhibit that the compatibility of PAR/PC blends is improved with increasing the catalyst loading at the melt-compounding. The infrared spectroscopic analysis reveals the formation of PAR-co-PC copolymers in the melt-compounded blends via catalyst-assisted interchange reactions between ester groups of PAR and carbonate groups of PC. Accordingly, the shear moduli and complex viscosity at a melt state increase for the melt-processed blends with higher catalyst loadings. In addition, the meltcrystallization and melting temperatures of PAR and the glass transition temperature of PC tend to decrease for the blends manufactured at higher catalyst contents due to the shortening of crystallizable PAR and amorphous PC segments. Interestingly, the residue at 800

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  Cite this article

[IEEE Style]

H. Gang, Y. Chang, E. Choi, S. Lee, G. Park, H. Jeon, S. Kim, Y. G. Jeong, "Structure and Properties of Thermotropic Polyarylate/Polycarbonate Blends Compatibilized by Catalyst-assisted Ester-Carbonate Interchange Reactions," Fibers and Polymers, vol. 23, no. 7, pp. 1770-1778, 2022. DOI: 10.1007/s12221-022-4228-7.

[ACM Style]

Ha-Eun Gang, Yunju Chang, Eun-Ji Choi, So-Jeong Lee, Gyu-Tae Park, Ha-Bin Jeon, Soo-Yeon Kim, and Young Gyu Jeong. 2022. Structure and Properties of Thermotropic Polyarylate/Polycarbonate Blends Compatibilized by Catalyst-assisted Ester-Carbonate Interchange Reactions. Fibers and Polymers, 23, 7, (2022), 1770-1778. DOI: 10.1007/s12221-022-4228-7.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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