TRANSIENT CURRENTS IN POLY(VINYL ALCOHOL) POLY(VINYL PYRROLIDONE) POLYMER BLEND FILMS

被引：8
|
作者：
NARAYANA, KL [1 ]
DASARADHUDU, Y [1 ]
RAO, VVRN [1 ]
机构：
[1] SRI VENKATESWARA UNIV,DEPT PHYS,TIRUPATI 517502,ANDHRA PRADESH,INDIA
来源：
POLYMER INTERNATIONAL | 1994年 / 35卷 / 04期
关键词：
TRANSIENT CURRENTS; POLYMER BLEND FILMS; QUASI-STEADY-STATE CURRENTS; ISOCHRONAL CURRENTS; ACTIVATION ENERGIES; DIPOLAR PROCESS; SPACE CHARGE;
D O I：
10.1002/pi.1994.210350403
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Transient currents (charging and discharging currents) in poly(vinyl alcohol) (PVA)-poly(vinyl pyrrolidone) (PVP) polymer blend films were measured over the temperature range 30-150-degrees-C at field strengths of 2.32-23.2 x 10(6) Vm-1. Polymer films were prepared by the isothermal immersion technique. Activation energies were evaluated from quasi-steady-state currents. A single relaxation peak was observed both from isochronal currents and low frequency dielectric relaxation. Activation energies evaluated from these two methods are found to be in fairly good agreement. The polarization is considered to be due to space charge origin along with some contribution from dipolar groups. The maximum loss was observed in Sample I (PVA: PVP = 25: 75), suggesting maximum heterogeneity in this blend ratio.
引用
下载
收藏
页码：315 / 320
页数：6
相关论文
共 50 条
  • [21] Electromagnetic properties of aluminosilicate-filled polymer composites of poly(vinyl alcohol)-poly(vinyl pyrrolidone)
    Saha, N
    Sedlarik, V
    Saha, P
    Kazantseva, N
    Kar, S
    Banthia, AK
    POLYMER COMPOSITES, 2005, 26 (06) : 739 - 744
  • [22] INVESTIGATION OF POLY(VINYL ALCOHOL) POLY(N-VINYL-2-PYRROLIDONE) BLENDS .3. PERMEATION PROPERTIES OF POLYMER BLEND MEMBRANES
    PING, ZH
    NGUYEN, QT
    NEEL, J
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 1994, 195 (06) : 2107 - 2116
  • [23] Dielectric characterization of solution intercalation and melt intercalation poly(vinyl alcohol)-poly(vinyl pyrrolidone) blend-montmorillonite clay nanocomposite films
    Sengwa, R. J.
    Sankhla, Sonu
    Choudhary, Shobhna
    INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 2010, 48 (03) : 196 - 204
  • [24] Investigation of Electrochemical Studies of Magnesium Ion Conducting Poly(vinyl alcohol)-Poly(vinyl pyrrolidone) Based Blend Polymers
    Jeyabanu, K.
    Siva, V.
    Nallamuthu, N.
    Selvanayagam, S.
    Bahadur, S. Asath
    Manikandan, A.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2018, 18 (02) : 1103 - 1109
  • [25] An overview of poly(vinyl alcohol) and poly(vinyl pyrrolidone) in pharmaceutical additive manufacturing
    Bianchi, Marica
    Pegoretti, Alessandro
    Fredi, Giulia
    JOURNAL OF VINYL & ADDITIVE TECHNOLOGY, 2023, 29 (02): : 223 - 239
  • [26] Mechanical and structural analysis of poly(vinyl alcohol)/poly(ethylene-co-vinyl alcohol) blend films
    Tang, Yunrong
    Guo, Lei
    Huang, Lianghui
    Liu, Xin
    Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 2015, 31 (10): : 57 - 61
  • [27] Silver-Doped Zinc Oxide as a Nanofiller for Development of Poly(vinyl alcohol)/Poly(vinyl pyrrolidone) Blend Nanocomposites
    Ramesan, M. T.
    Varghese, Meghana
    Jayakrishnan, P.
    Periyat, Pradeepan
    ADVANCES IN POLYMER TECHNOLOGY, 2018, 37 (01) : 137 - 143
  • [28] Viscometric and ultrasonic studies of blends of poly(vinyl pyrrolidone) and poly(vinyl alcohol)
    Rao, RV
    Iatha, P
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1999, 18 (06) : 457 - 459
  • [29] MISCIBILITY AND ORIENTATION BEHAVIOR OF POLY(VINYL ALCOHOL) POLY(VINYL PYRROLIDONE) BLENDS
    NISHIO, Y
    HARATANI, T
    TAKAHASHI, T
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1990, 28 (03) : 355 - 376
  • [30] Characterization of polymeric biocomposite based an poly(vinyl alcohol) and poly(vinyl pyrrolidone)
    Sedlarík, V
    Saha, N
    Kuritka, I
    Sáha, P
    POLYMER COMPOSITES, 2006, 27 (02) : 147 - 152
12345