NEW SILARYLENE METHYLPHENYLSILOXANE COPOLYMER STATIONARY PHASE FOR OPEN TUBULAR GAS-CHROMATOGRAPHY

被引：7

作者：

JANAK, K ^{[1
]}

HAGGLUND, I ^{[1
]}

BLOMBERG, LG ^{[1
]}

CLAUDE, SG ^{[1
]}

TABACCHI, R ^{[1
]}

机构：

[1] UNIV STOCKHOLM,ARRHENIUS LAB,DEPT ANALYT CHEM,S-10691 STOCKHOLM,SWEDEN

来源：

JOURNAL OF MICROCOLUMN SEPARATIONS | 1991年 / 3卷 / 06期

关键词：

GAS CHROMATOGRAPHY; OPEN TUBULAR COLUMNS; IMMOBILIZED SILARYLENE SILOXANE STATIONARY PHASE; METHYL PHENYL SILICONE; POLYCYCLIC AROMATIC COMPOUNDS;

D O I：

10.1002/mcs.1220030604

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

A new silanol-terminated silarylene/siloxane copolymer, having 30% phenyl and 1.5% vinyl substitution, has been evaluated for use as a stationary phase in gas chromatography. The polymer was found to be auto-cross-linkable. The highest degree of immobilization (90%) was obtained at relatively low temperatures (300-degrees-C). The auto-cross-linking at lower temperatures might be due to a silanol catalyzed reaction of vinyl groups. At higher temperatures (350-370-degrees-C) scission of phenyl groups and the formation of branched structures are the dominating immobilization reactions. Column polarity is thereby decreased. Thermal stability was excellent at 370-degrees-C after conditioning at this temperature. The utility of the columns was illustrated by the separation of polycyclic aromatic compounds.

引用

页码：497 / 503

页数：7

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