Characterization of silicone rubber extracts using gel-permeation chromatography, matrix-assisted laser desorption/ionization mass spectrometry, electrospray ionization mass spectrometry, Fourier transform infrared spectroscopy and gas chromatography/mass spectrometry

被引：15

作者：

Liu, XM ^{[1
]}

Maziarz, EP ^{[1
]}

Price, F ^{[1
]}

Heiler, DJ ^{[1
]}

Grobe, GL ^{[1
]}

机构：

[1] Bausch & Lomb Inc, Res & Dev, Rochester, NY 14603 USA

来源：

EUROPEAN JOURNAL OF MASS SPECTROMETRY | 2001年 / 7卷 / 06期

关键词：

characterization; mass spectrometry; extract analysis; polysiloxanes; GPC; MALDI; time-of-flight; electrospray ionization (ESI); FT-IR; GC-MS;

D O I：

10.1255/ejms.463

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Extracts from a silicone rubber product were characterized by gel-permeation chromatography (GPC), matrix-assisted laser desorption/ionization time-of-flight (MALDI-ToF) mass spectrometry, Fourier transform infrared spectroscopy (FT-IR), electrospray time-of-flight (ESI-ToF) mass spectrometry and gas chromatography/mass spectrometry (GUMS). The extracted sample was determined to be a complex mixture with a molecular weight ranging from 200 to 210,000 Da as determined from GPC measurements. GPC fractions of the extract sample were further analyzed by MALDI-ToF mass spectrometry, ESI-ToF mass spectrometry, FT-IR spectroscopy and GUMS. The extracted products were determined to be macrocyclic poly(dimethylsiloxane) oligomers. Two additives known as bis(2-ethylhexyl) adipate and bis(2-ethylhexyl) phthalate were observed in the extract.

引用

页码：473 / 480

页数：8

共 29 条

[1] Gel permeation chromatography coupled to Fourier transform mass spectrometry for polymer characterization [J].