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:
Injection- and compression-molded poly(acrylonitrile-butadiene-styrene) (ABS) samples were aged at 40 to 90°C in a nitrogen atmosphere. Dynamic mechanical measurements show that aging restricts molecular mobility in the glassy poly(styrene-acrylonitrile) matrix of ABS. The α, or glass transition, of the matrix is affected only by aging at higher temperatures such as 90°C. On the other hand, the β transition is suppressed to some extent by aging at all temperatures from 40 to 90°C parallels the loss of tensile elongation previously reported. These results indicate that the effects of aging on the glassy phase are unique for different aging temperatures. Therefore, a simple time temperature superposition may not exist for the effects of physical aging on ABS.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1980.070250718
