ISSN:
0887-624X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Styrene oxide (SO) (phenyl oxirane) and 1,2-cyclohexene oxide (CO) (7-oxa bicyclo[410] heptane) have been copolymerized neat with the aid of the carbocation salt triphenylmethyl hexachloroantimonate (Ph3CSbCl6) (HC) at 0, 30, and 56°C. NMR spectra of the polymeric products before and after extraction with acetone indicated that the copolymerization products were copolymers and not mixtures of the respective homopolymers. Both, the Kelen-Tüdos and Fineman-Ross methods for the determination of the monomer reactivity ratios yielded identical results. These were: 0°C: r1 (CO) = 4.34, r2(SO) = 0.34; 30°C, r1(CO) = 4.19, r2(SO) = 0.42; 56°C, r2(CO) = 3.94, r2(SO) = 0.46.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1991.080291011
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