ISSN:
0935-6304
Keywords:
Capillary GC
;
Glass capillaries
;
OH-terminated polysiloxanes
;
Thermal immobilization
;
Surface bonding
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Differently pretreated glass capillaries were coated with hydroxy-terminated methyl or methyl-phenyl polysiloxane gum phases and cured at 340-360°C for several hours. The volatile reaction products formed during the baking procedure were analyzed and the retention behavior of various polar test compounds were investigated both before and after the heat treatment. The findings were used to establish a reaction scheme which explains crosslinking and surface bonding of hydroxy-terminated silicone phases in high-temperature-silylated glass capillaries. The principle has been extended to the immobilization of common endcapped silicone phases by mixing them with hydroxy-terminated phases.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jhrc.1240140303
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