Title :
Charge distributions in PC/SAN/PCL polymer blends
Author :
Suh, Kwang S. ; Lee, Hyung Jae ; Lee, Dai Soo ; Kang, Chang Gyun
Author_Institution :
Dept. of Mater. Sci., Korea Univ., Seoul, South Korea
fDate :
6/1/1995 12:00:00 AM
Abstract :
The formation of space charge in polycarbonate (PC)/poly (styrene-co-acrylonitrile) (SAN) blends containing poly (ε-caprolactone) (PCL) as a compatibilizer for improving the miscibility, has been studied by measuring spatial charge distributions. It is found that the miscibility of PC/SAN blends is improved as the PCL content increases. The amount of charge accumulated in the blends decreases when the PCL content increases to 15% by weight and then increases when the PCL content is >15% wt. The decrease of charge at the PCL content <15% wt was attributed to the combined effects of changes in conductivities and the molecular interactions at the domain interfaces. The increase of charge at the PCL content >15% wt was attributed to the trapping of charge at the amorphous and crystalline phases of PC and PCL
Keywords :
electron traps; organic insulating materials; polymer blends; polymer films; solid solubility; space charge; PG/SAN/PCL polymer blends; amorphous phase; charge distributions; charge trapping; compatibilizer; conductivities; crystalline phase; domain interfaces; miscibility; molecular interactions; poly (ϵ-caprolactone); poly (styrene-co-acrylonitrile); polycarbonate; space charge; spatial charge distribution measurements; Amorphous materials; Charge measurement; Crystallization; Current measurement; Electrodes; Electron traps; Materials science and technology; Polymers; Space charge; Storage area networks;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
