STUDY OF THE DEGRADATION OF POLYDIMETHYLSILOXANES ON SOIL

被引：68

作者：

CARPENTER, JC ^{[1
]}

CELLA, JA ^{[1
]}

DORN, SB ^{[1
]}

机构：

[1] GE CO,CORP RES & DEV,SCHENECTADY,NY 12301

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1995年 / 29卷 / 04期

关键词：

D O I：

10.1021/es00004a005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of polydimethylsiloxanes (silicones) on a spiked standard soil matrix has been studied. Spiked soil was extracted to recover silicones, and the extract was examined by several analytical techniques, including gel permeation chromatography and high-pressure liquid chromatography with an inductively coupled plasma emission spectrometer as the detector. Silicones were found to degrade rapidly to low molecular weight alpha,omega-siloxanediol oligomers. Within 4-6 weeks, more than half of the initial spiked silicone is converted to a water-soluble fraction consisting mostly of 1,1-dimethylsilanediol. Implications of this finding relative to the ultimate environmental fate of silicones is discussed.

引用

页码：864 / 868

页数：5

共 11 条

[1] STUDIES OF THE OXIDATIVE PHOTOINDUCED DEGRADATION OF SILICONES IN THE AQUATIC ENVIRONMENT [J].