Citation: . SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE[J]. Chinese Journal of Polymer Science, ;2000, 18(6): 541-549. shu

SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE

Received Date: 21 February 2000

Fully soluble poly[2-methoxy-5-(2'-ethylhexyl)-oxy)-p-phenylenevinylene] (MEH-PPV) was synthesized by theaddition of molecular weight modifiers (chain stopper, free radical scavengers) to a polymerization system containingmonomer, catalyst and a solvent. These PPV products synthesized in this work were characterized by IR, NMR, UV-visiblespectroscopy and GPC. Results show that the Mw of polyphenylvinylene (PPV) can be controlled by the addition of chainstopper (benzyl bromide) and radical inhibitor (2,6-di-tert-butyl-4-methyl phenol).The polymerization mechanism in the presence of these additives was also discussed.A dual mechanism involving carbene for PPV polymerization was proposed.
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