ISSN:
1040-7685
Keywords:
gas chromatography
;
glass capillary columns
;
narrow bore
;
sildiphenylene ether/3,3,3-trifluoropropylmethylpolysiloxane
;
silphenylene/3,3,3-trifluoropropylmethylpolysiloxane
;
OH-terminated phases
;
stationary phases
;
trifluoropropyl phases
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
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, being specific for trifluoropropyl substituted polysiloxanes. The crosslinking mechanism is discussed. Both new OH-terminated phases, sildiphenylene/trifluoropropylmethyl and sildiphenylene ether/trifluoropropylmethyl-polysiloxane (SA-TF and SDPE-TF) were characterized, and their performance at high temperatures (〉400°C) is demonstrated.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mcs.1220030406
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