On the radiopolymerization of carbon disulfide

被引：17

作者：

Cataldo, F ^{[1
]}

机构：

[1] Progega SNC, I-00133 Rome, Italy

来源：

RADIATION PHYSICS AND CHEMISTRY | 2000年 / 58卷 / 03期

关键词：

carbon disulfide; radiopolymer; UV-VIS; FT-IR;

D O I：

10.1016/S0969-806X(99)00463-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Liquid carbon disulfide was irradiated under nitrogen with 1 MGy dose of gamma-rays at room temperature. The chemical structure of the resulting radiopolymer was studied by electronic and FT-IR spectroscopy and was found to be that of the CS2-polymer obtained by UV irradiation, ultrasound or high pressure treatment. It consists of a mixture of a linear polymer (CS2)x and a ladder polymer (C3S2)x derived from carbon subsulfide (S=C=C=C=S). The mechanism of reaction is discussed and is suggested to be similar to that of photopolymerization, involving the formation of carbon monosulfide C=S and sulfur in the early reaction step. The implications of CS2 photopolymerization and radiopolymerization in the cosmochemistry of molecular clouds, planetary atmospheres and comets and meteorites are discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：217 / 222

页数：6

共 22 条

[1] PRESSURE-INDUCED AND TEMPERATURE-INDUCED CHEMISTRY OF CARBON-DISULFIDE [J].