ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Toluene Sulfonamide Formaldehyde Resins (TSFR), having elemental analysis close to (C8H9NSO2)n, are shown by GPC to exist as a mixture of a few (5 to 6) oligomers, having masses between 400 and 1900 g. A complete scheme of all the possible intermediates involved in their preparation is derived from the results of synthesis and from mechanistic steps; this allows one to propose the structure of oligomers having end groups OH and NH. IR, 1H NMR, and 13C NMR data on oligomers, compared to those of authentic samples specially designed and prepared, agree with the structures proposed. These results are helpful in designing modified or new resins to be used in nail lacquers. © 1993 John Wiley & Sons, Inc.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1993.070490310
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