Synthesis and characterization of polyacriflavine

被引：5

作者：

Marjanovic, B. ^{[1
]}

Ciric-Marjanovic, G. ^{[2
]}

Radulovic, A. ^{[3
]}

Juranic, I. ^{[4
]}

Holler, P. ^{[5
]}

机构：

[1] Centrohem, Karadjordjeva 129, Stara Pazova, Serbia

[2] Univ Belgrade, Fac Phys Chem, Belgrade 11001, Serbia

[3] Univ Belgrade, Inst Gen & Phys Chem, Belgrade 11001, Serbia

[4] Univ Belgrade, Fac Chem, Belgrade 11001, Serbia

[5] Acad Sci Czech Republic, Inst Macromolecular Chem, CZ-16206 Prague, Czech Republic

来源：

RESEARCH TRENDS IN CONTEMPORARY MATERIALS SCIENCE | 2007年 / 555卷

关键词：

chemical oxidative polymerization; coupling reactions; MNDO-PM3; molecular structure; morphology; polyacriflavine; semiconducting polymer;

D O I：

10.4028/www.scientific.net/MSF.555.503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New functional polymeric, semiconducting materials were synthesized by chemical oxidative polymerization of acriflavine hydrochloride in aqueous solution at room temperature, using ammonium peroxydisulfate as an oxidant. Polymerization products were characterized by gel-permeation chromatography (GPC), FTIR spectroscopy, scanning electron microscopy (SEM) and conductivity measurements. The influence of the oxidant/monomer molar ratio on the molecular structure, molecular weight distribution and the electrical conductivity of polyacriflavines was studied. Molecular weights approach a maximum value of similar to 20000. The polyacriflavine prepared by using oxidant/monomer molar ratio 1.25 shows the conductivity of 2.8 x 10(-7) S cm(-1). New substitution pattern shown by FTIR spectroscopic analysis combined with MNDO-PM3 semi-empirical quantum chemical calculations revealed N-C2 coupling reactions as dominant. The formation of phenazine rings in ladder structured polymerization products was observed by FTIR spectroscopy. The existence of a certain polyacriflavine crystalline structure was suggested from the SEM micrographs.

引用

页码：503 / +

页数：2

共 17 条

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[2]

Burkert U., 1982, Molecular Mechanics

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