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Title: FE-NMR analysis of silane hydrogen, phenyl, and vinyl content of several siloxane pre-polymer materials

Abstract

The vinyl contents of siloxane pre-polymer materials were determined by proton FT-NMR. It was determined that the presence of silane hydrogen in these pre-polymers compromises and in some cases negates vinyl content data reported by use of the iodine monochloride procedure. The active hydrogen species reacts with ICl and produces high iodine numbers, even if no vinyl is present. Siloxane aromatic compounds have also been detected by proton FT-NMR, and they also function as an interfering species and produce high iodine numbers by the ICl procedure.

Authors:
Publication Date:
Research Org.:
Mason and Hanger-Silas Mason Co., Inc., Amarillo, TX (United States)
OSTI Identifier:
6166384
Report Number(s):
MHSMP-79-15
DOE Contract Number:  
EY-76-C-04-0487
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; SILICONES; QUANTITATIVE CHEMICAL ANALYSIS; SILOXANES; VINYL MONOMERS; NUCLEAR MAGNETIC RESONANCE; SPECTRA; CHEMICAL ANALYSIS; MAGNETIC RESONANCE; MONOMERS; POLYMERS; RESONANCE; 400100* - Analytical & Separations Chemistry

Citation Formats

Clink, G L. FE-NMR analysis of silane hydrogen, phenyl, and vinyl content of several siloxane pre-polymer materials. United States: N. p., 1979. Web. doi:10.2172/6166384.
Clink, G L. FE-NMR analysis of silane hydrogen, phenyl, and vinyl content of several siloxane pre-polymer materials. United States. https://doi.org/10.2172/6166384
Clink, G L. 1979. "FE-NMR analysis of silane hydrogen, phenyl, and vinyl content of several siloxane pre-polymer materials". United States. https://doi.org/10.2172/6166384. https://www.osti.gov/servlets/purl/6166384.
@article{osti_6166384,
title = {FE-NMR analysis of silane hydrogen, phenyl, and vinyl content of several siloxane pre-polymer materials},
author = {Clink, G L},
abstractNote = {The vinyl contents of siloxane pre-polymer materials were determined by proton FT-NMR. It was determined that the presence of silane hydrogen in these pre-polymers compromises and in some cases negates vinyl content data reported by use of the iodine monochloride procedure. The active hydrogen species reacts with ICl and produces high iodine numbers, even if no vinyl is present. Siloxane aromatic compounds have also been detected by proton FT-NMR, and they also function as an interfering species and produce high iodine numbers by the ICl procedure.},
doi = {10.2172/6166384},
url = {https://www.osti.gov/biblio/6166384}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 1979},
month = {Thu Mar 01 00:00:00 EST 1979}
}