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|Title: ||EFFECT OF IODINE DOPING ON THE MISCIBILITY OF POLY(PARA-PHENYLENE VINYLENE) MODEL COMPOUNDS MIXED WITH PMMA USING NMR SOLID-STATE TECHNIQUES|
|Authors: ||NOUWEN, J|
|Issue Date: ||1992|
|Publisher: ||ELSEVIER SCIENCE SA LAUSANNE|
|Citation: ||SYNTHETIC METALS, 53(1). p. 77-84|
|Abstract: ||Chemical shift data of CP/MAS C-13 NMR spectra and T1(rho)H measurements as well as H-1 combined rotation and multiple pulse spectroscopy (CRAMPS) using 2D exchange experiments indicate that iodine doping of mixtures of trans,trans-1,4-bis(2-(3,4,5-trimethoxyphenyl)ethenyl)benzene (MPV) and poly(methyl methacrylate) (PMMA) induces heterogeneity. It is shown by 2D H-1 CRAMPS experiments that doped trans, trans-MPV mixtures with weight ratio MPV/PMMA/I2 = 1/1.5/1 are completely heterogeneous, whereas undoped MPV mixtures are homogeneous. Phase separation upon doping occurs also for the cis-tram mixtures of MPV.|
|Notes: ||UNIV INSTELLING ANTWERP,DEPT CHEM,B-2610 WILRIJK,BELGIUM.NOUWEN, J, UNIV LIMBURG,INST MAT RES,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM.|
|ISI #: ||A1992KD40400009|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
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