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:
The relative viscosity and amino and carboxyl endgroup contents for unset, dry-heat-set, and steam-set nylon 6 fiber were determined. The results for the heat-set fibers are almost the same as those for the unset fibers. Therefore, it is difficult to explain the increase of dye uptake in steam setting on the basis of hydrolysis of nylon molecules. The differences in amino endgroup contents as determined by the p-toluenesulfonic acid and 2,4-dinitrofluorobenzene methods indicate that 20-30% of the amino groups might be occluded in the crystalline regions after steam setting.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1965.070090104