Journal ArticleDOI
13C NMR Characterization of Polychloroprene Microstructure II. Relaxation, NOE, and Quantitative Measurements
M. M. Coleman,E. G. Brame +1 more
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Spin relaxation, NOE, and quantitative measurements have been performed on chloroprene polymers prepared by free radical techniques in the range −150 to +90°C as mentioned in this paper, and 13C NMR has proved to be an...Abstract:
Spin relaxation, NOE, and quantitative measurements have been performed on chloroprene polymers prepared by free radical techniques in the range −150 to +90°C. 13C NMR has proved to be an ...read more
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Spontaneous polymerization in the emulsion polymerization of styrene and chlorobutadiene
TL;DR: In this article, a methodology is derived for finding the locus of spontaneous polymerization in emulsion polymerization, through use of spin traps and catalysts which can accelerate decomposition of peroxides.
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Vulcanization of polychloroprene rubber. I. A revised cationic mechanism for ZnO crosslinking
TL;DR: In this article, data relating to the vulcanization of mercaptan-grade polychloroprene (CR) by ZnO and MgO (alone or in combination) are examined.
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Dichlorocarbene Modified Natural Rubber
TL;DR: In this article, the 13C n.m.r. spectrum of the 100% modified natural rubber showed the presence of diastereoisomers due to two modes of addition of dichlorocarbene units as previously observed in epoxidation.
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Copolymerization of chloroprene with elemental sulphur. 1H n.m.r. study on the stereochemistry of the chloroprene unit adjacent to the sulphur unit
Yoshiaki Miyata,Masato Sawada +1 more
TL;DR: In this paper, free radical copolymerization of chloroprene (Cp) with elemental sulphur (S8) was studied in a range of temperatures from 20 to 100°C as a function of total monomer concentration.
Journal ArticleDOI
Determination of labile chlorine content in polychloroprene, chlorobutyl rubber and chlorinated ethylene-propylene copolymer by thermal dehydrochlorination combined with Me3 Al treatment
TL;DR: The labile (allylic and/or tertiary) chlorine content of polychloroprene, chlorobutyl rubber, and chlorinated ethylene propylene copolymer has been determined by thermal dehydrochlurination combined with Me3Al treatment.