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:
A solvent swelling method is often a convenient means of characterizing the structure of a polymeric network, if the appropriate solvent-polymer interaction parameters are known. Three such methods for measuring the solvent dilative action on silica-filled, silicone rubber networks have been investigated. First, the quantity by weight of solvent sorbed by the rubber was determined by measuring the weight gain of a rubber specimen at equilibrium swelling. Second, the increase in volume of the rubber specimen was determined by optical and electronic instruments. Third, the volume of solvent taken up by the rubber specimen was measured directly by a simple apparatus which was designed by the author. The effective crosslink densities were calculated by using appropriate interaction parameters. These density values were then compared for the three techniques.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1965.070091008
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