POLY[(P-ETHYNYLPHENYL)HYDROGALVINOXYL] AND ITS POLYRADICAL DERIVATIVE WITH HIGH-SPIN CONCENTRATION

被引：49

作者：

YOSHIOKA, N ^{[1
]}

NISHIDE, H ^{[1
]}

KANEKO, T ^{[1
]}

YOSHIKI, H ^{[1
]}

TSUCHIDA, E ^{[1
]}

机构：

[1] WASEDA UNIV,DEPT POLYMER CHEM,TOKYO 169,JAPAN

来源：

MACROMOLECULES | 1992年 / 25卷 / 15期

关键词：

D O I：

10.1021/ma00041a003

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

[4-[(3,5-Di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenyl]acetylene (6), was synthesized and polymerized to yield a solvent-soluble polyacetylene poly[[4-[(3,5-di-tert-butyl-4-hydroxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenyl]acetylene] (5a). The polymer gave its polyradical derivative 5b through the chemical oxidation with active PbO2. 5b was stable, whose spin concentration could be increased up to 4.8 x 10(23) spins per molar monomer unit. ESR analysis indicated localization of unpaired electrons in the galvinoxyl residue. ESR analysis also suggested an exchange-narrowing and interpolymer dipole-dipole interaction.

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页码：3838 / 3842

页数：5

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