ISSN:
0449-2951
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Data for the rates of sulfonation of polystyrene crosslinked with 2, 4, and 8% pure p-, 2:1/m:p-, and commercial divinylbenzenes at 60 and 80°C. have given activation energies varying from 11,520 to 40,190 cal./mole. Rates are lowest and activation energies highest for the p-divinylbenzene crosslinked structures. This is attributed to differences in rates of diffusion through the different types of network structures and is consistent with previously noted decreased swelling ratios for the para crosslinked types.
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1965.100030318
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