Physical characterization of polyaniline-Na+-montmorillonite nanocomposite intercalated by emulsion polymerization

被引:114
作者
Kim, BH
Jung, JH
Kim, JW
Choi, HJ
Joo, J [1 ]
机构
[1] Korea Univ, Dept Phys, Seoul 136701, South Korea
[2] Korea Univ, Ctr Electro & Photo Respons Mol, Seoul 136701, South Korea
[3] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea
关键词
polyaniline and polyaniline-Na+-montmorillonite; conductivity; XPS; EPR; X-ray diffraction;
D O I
10.1016/S0379-6779(00)00549-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report the results of temperature dependence of de conductivity (sigma (dc)(T)), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and X-ray diffraction (XRD) experiments for dodecylbenzenesulfonic acid (DBSA) doped polyaniline (PAN)-Na+-montmorillonite (MMT) nanocomposite. The PAN-Na+-MMT nanocomposite was synthesized by intercalating the emulsion of aniline monomer with zylene and DBSA in the layer of Na+-MMT with distilled water and then initiating the polymerization of aniline inside the layer of Na+-MMT. From the results of X-ray diffraction experiments, we observe the insertion of PAN-DBSA between the interlayer of the Na+-MMT, whose separation consequently becomes larger (1.52 nm) than in a polymer-free clay (0.96 nm). The sigma (dc) Of the systems is similar to 10(-1) S/cm at room temperature, and its temperature dependence follows a quasi one-dimensional variable range hopping (VRH) model. The slope of sigma (dc) is similar to7.0x10(3) K. From the result of XPS experiment, we obtain the doping level of the system quantitatively. We measure temperature dependence of EPR linewidths. Base on those results, we discuss the effect of the layer of montmorillonite on PAN-DBSA samples. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:115 / 118
页数:4
相关论文
共 21 条
[1]   MAGNETIC-SUSCEPTIBILITY OF POLYANILINE IN SOLUTION IN NONPOLAR ORGANIC-SOLVENTS AND IN POLYBLENDS IN POLY(METHYL METHACRYLATE) [J].
CAO, Y ;
HEEGER, AJ .
SYNTHETIC METALS, 1992, 52 (02) :193-200
[2]   COUNTERION INDUCED PROCESSIBILITY OF CONDUCTING POLYANILINE AND OF CONDUCTING POLYBLENDS OF POLYANILINE IN BULK POLYMERS [J].
CAO, Y ;
SMITH, P ;
HEEGER, AJ .
SYNTHETIC METALS, 1992, 48 (01) :91-97
[3]  
Cho MS, 1998, MACROMOL RAPID COMM, V19, P271, DOI 10.1002/(SICI)1521-3927(19980601)19:6<271::AID-MARC271>3.0.CO
[4]  
2-O
[5]   EMI SHIELDING MEASUREMENTS OF CONDUCTIVE POLYMER BLENDS [J].
COLANERI, NF ;
SHACKLETTE, LW .
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1992, 41 (02) :291-297
[6]   INSULATOR-TO-METAL TRANSITION IN POLYANILINE [J].
EPSTEIN, AJ ;
GINDER, JM ;
ZUO, F ;
BIGELOW, RW ;
WOO, HS ;
TANNER, DB ;
RICHTER, AF ;
HUANG, WS ;
MACDIARMID, AG .
SYNTHETIC METALS, 1987, 18 (1-3) :303-309
[7]   Charge transport of the mesoscopic metallic state in partially crystalline polyanilines [J].
Joo, J ;
Long, SM ;
Pouget, JP ;
Oh, EJ ;
MacDiarmid, AG ;
Epstein, AJ .
PHYSICAL REVIEW B, 1998, 57 (16) :9567-9580
[8]   MICROWAVE DIELECTRIC RESPONSE OF MESOSCOPIC METALLIC REGIONS AND THE INTRINSIC METALLIC STATE OF POLYANILINE [J].
JOO, J ;
OBLAKOWSKI, Z ;
DU, G ;
POUGET, JP ;
OH, EJ ;
WIESINGER, JM ;
MIN, Y ;
MACDIARMID, AG ;
EPSTEIN, AJ .
PHYSICAL REVIEW B, 1994, 49 (04) :2977-2980
[9]   PHONON-INDUCED NONMETAL-METAL TRANSITION OF A DOPED POLYANILINE [J].
JOO, J ;
PRIGODIN, VN ;
MIN, YG ;
MACDIARMID, AG ;
EPSTEIN, AJ .
PHYSICAL REVIEW B, 1994, 50 (16) :12226-12229
[10]   Stretching-induced crossover to the metallic state in iodine-doped polyacetylene samples [J].
Joo, J ;
Du, G ;
Tsukamoto, J ;
Epstein, AJ .
SYNTHETIC METALS, 1997, 88 (01) :1-6