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:
Red complex formation between poly(vinyl alcohol-vinyl acetate) with iodine was investigated from the standpoint of its application as a measure of sequence distribution in the copolymer. Defining a parameter Y which means a ratio of the bound triiodide ion to the VAc unit in a copolymer, we could relate the Y value to the sequence probabilities. Sequence probabilities have also been evaluated by differential thermal analysis. Comparing the probabilities obtained from both methods, the iodine complexation method is concluded to be a complementary method with thermal analysis, that is, the iodine complexation method is applicable to the VAc unit-rich copolymers, in which the melting point cannot be measured by the thermal analysis.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1986.070320311
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