SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE

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SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE

Papers | Updated：2021-06-21

- SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE
- Vol. 18, Issue 6, Pages: 541-549(2000)
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- Published：20 December 2000
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SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE[J]. 2000, 18(6): 541-549.
DOI：

SYNTHESIS AND CHARACTERIZATION OF FULLY SOLUBLE POLYPHENYLENEVINYLENE[J]. 2000, 18(6): 541-549. DOI：

摘要

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.

Abstract

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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