Influence of K2CrO4 Doping on the Structural, Optical and Dielectric Properties of Polyvinyl Alcohol/K2CrO4 Composite Films

被引：74
作者：
Deshmukh, Kalim [1 ]
Ahamed, M. Basheer [1 ]
Deshmukh, Rajendra R. [2 ]
Bhagat, Pundlik R. [3 ]
Pasha, S. K. Khadheer [4 ]
Bhagat, Aditya [5 ]
Shirbhate, Rutwesh [5 ]
Telare, Fastin [5 ]
Lakhani, Chirag [6 ]
机构：
[1] BS Abdur Rahman Univ, Dept Phys, Madras 600048, Tamil Nadu, India
[2] Inst Chem Technol Matunga, Dept Phys, Bombay, Maharashtra, India
[3] VIT Univ, Sch Adv Sci, Div Organ Chem, Vellore, Tamil Nadu, India
[4] VIT Univ, Sch Adv Sci, Sensors Lab, Vellore, Tamil Nadu, India
[5] VIT Univ, Sch Mech & Bldg Sci, Vellore, Tamil Nadu, India
[6] VIT Univ, Sch Adv Sci, Pharmaceut Chem Div, Vellore, Tamil Nadu, India
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2016年 / 55卷 / 03期
关键词：
Dielectric properties; optical microscopy; polymer composites; PVA; SEM; POLY(VINYL ALCOHOL); RELAXATION; TIO2; GEL;
D O I：
10.1080/03602559.2015.1055499
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyvinyl alcohol/potassium chromate (K2CrO4) composite films were prepared by solution casting technique using distilled water as a solvent, and were further investigated using Fourier transform infrared spectroscopy, ultraviolet- visible spectroscopy, X-ray diffraction, thermogravimetric analysis, optical microscopy, scanning electron microscopy, and dielectric measurements. Microscopic studies reveal that K2CrO4 was homogenously mixed with polyvinyl alcohol matrix due to interfacial interaction between polyvinyl alcohol and K2CrO4. The composite films showed very high dielectric constant and relatively low dielectric loss. Hence, such composite materials with improved dielectric properties could be useful for fabrication of electrical charge storage device.
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收藏
页码：231 / 241
页数：11
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