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Title: | Miscibility of poly(para-phenylene vinylene) model compounds with polycarbonate studied by solid-state NMR | Authors: | NOUWEN, J PAULUSSEN, Harald VERREYT, G YANG, Z GEISE, HJ ADRIAENSENS, Peter VANDERZANDE, Dirk GELAN, Jan |
Issue Date: | 1993 | Publisher: | ELSEVIER SCIENCE SA LAUSANNE | Source: | SYNTHETIC METALS, 59(2). p. 171-179 | Abstract: | Wittig synthesis of 2,5-dimethoxy-1,4-bis(2-(3,4,5-trimethoxyphenyl)ethenyl)benzene (MPV) was shown by high-temperature GC/MS to consist of about 34% cis,cis-, 46% trans, cis- and 20% trans, trans-configurations. The configurational mixture blended with polycarbonate (PC) results in homogeneous, intimate mixing at the molecular level for all investigated weight ratios MPV/PC (up to 60/40%). This follows from (i) the occurrence of cross-peaks in two-dimensional H-1 combined rotation and multiple pulse NMR spectroscopy (CRAMPS), and (ii) the observation of one common proton spin-locking relaxation time (T1rhoH) for all protons in the mixture together with a linear variation of these T1rhoH values as a function of the mixture composition. | Notes: | UNIV INSTELLING ANTWERP,UIA,DEPT CHEM,B-2610 WILRIJK,BELGIUM.NOUWEN, J, UNIV LIMBURG,INST MAT RES,DIV CHEM,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM. | Document URI: | http://hdl.handle.net/1942/3771 | ISI #: | A1993LJ80400004 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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