## Abstract The unexpectedly good thermal stability of OH‐terminated 3, 3, 3‐trifluoropropylmethylsiloxane/silarylene copolymers can be attributed to both the inclusion of bulky aromatic units in the polysiloxane backbone and to an autocrosslinking process taking place at temperatures above 370°C,
High temperature stable CH3O-terminated poly(diphenyl/dimethyl)- and poly(diphenyl/3,3,3-trifluoropropylmethyl)siloxane copolymer stationary phases for capillary gas chromatography
✍ Scribed by Wolfgang Blum; Reiner Aichholz
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 430 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1040-7685
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✦ Synopsis
Abstract
The preparation of two new medium polar CH~3~O‐terminated 50% diphenyl substituted polysiloxane phases by means of a one step condensation of bis(dimethylamino)alkylsilanes and diphenysilanediol is reported. Both phases can be used up to temperatures of 420°C. The unusual route of synthesis offers an easy and reliable way to prepare a variety of tailor‐made high temperature stable polysiloxane phases.
📜 SIMILAR VOLUMES
This article reports a new fluoroalkyl/phenyl-substituted medium polar stationary phase for high-temperature gas chromatography (HTGC). Coated on glass capillaries, the methoxy-terminated polfidiphenyl-lH, lH, 2H, 2H-perfluoro-decylmethy1)siloxane film is thermally stable up to 400°C. As a consequen
In this report we describe the coating of deionized glass surfaces with commercially available CH,O-terminated diphenyl-dimethylpolysiloxane (PS-OSO).This newtype of reactive, high temperature stable stationary phases withstands temperatures up to 430°C.As already reported for OH-terminated polymers