Effect of organic sulfur compounds on the autoxidation and stress relaxation of peroxide vulcanizates of natural rubber

1964 ◽  
Vol 8 (2) ◽  
pp. 699-705 ◽  
Author(s):  
J. I. Cunneen ◽  
D. F. Lee
Keyword(s):  
Stress Relaxation ◽  
Natural Rubber ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Organic Sulfur Compounds

Organic Sulfides as Vulcanizing Agents of Rubber

1951 ◽  
Vol 24 (1) ◽  
pp. 211-223 ◽  
Author(s):  
R. L. Sibley
Keyword(s):  
Natural Rubber ◽  
Physical Properties ◽  
Organic Compounds ◽  
Fractional Part ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Rubber Compound ◽  
Organic Sulfur Compounds ◽  
Organic Sulfides ◽  
Sulfur Containing

Abstract 1. It has been demonstrated that a number of organic sulfides possess the property of breaking down under vulcanizing conditions in a rubber compound to produce a cure. 2. Although several scores of sulfur-containing organic compounds other than those discussed in this paper or described in other papers have been tested, as yet there appear possible no generalizations to serve as a guide to further exploratory studies. 3. Organic sulfur compounds which are unstable under temperature conditions higher than normal do not liberate all of their sulfur in all cases. 4. Organic sulfur compounds employed alone as vulcanizing agents usually produce slower-curing rubber stocks than does sulfur, and at the same time lessen greatly the tendency of the stock to scorch. 5. Stocks of satisfactory physical properties, superior aging characteristics, and outstanding freedom from scorchiness are obtained by the use of a fractional part of the normal sulfur requirement together with a sulfur liberator. 6. Morpholine disulfide is a good example of a sulfur liberator, and exhibits its greatest effects in conjunction with a mercaptobenzothiazole type accelerator. 7. Morpholine disulfide gives satisfactory cures when used in place of sulfur in natural rubber, GR-S rubber, and Hycar-OR, but gives slow cures in GR-I rubber.

scholarly journals Pollution status of volatile organic sulfur compounds causing odor in Xi River and factors influencing spatial distribution

2020 ◽  
Vol 20 (4) ◽  
pp. 1264-1270
Author(s):  
Xiang Tu ◽  
Shaohua Chen ◽  
Siyu Wang ◽  
Haiqing Liao ◽  
Xuejiao Deng
Keyword(s):  
Spatial Distribution ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Industrial Emissions ◽  
Diethyl Sulfide ◽  
Organic Sulfur Compounds ◽  
Factors Influencing ◽  
Pollution Status ◽  
Volatile Organic ◽  
Volatile Organic Sulfur Compounds

Abstract This study investigated the pollution status of volatile organic sulfur compounds (VOSCs) and the factors influencing their spatial distribution in the Xi River in Shenyang, China. A method for simultaneous determination of 14 VOSCs that cause odor in water samples was developed by using purge and trap coupled with gas chromatography and a flame photometric detector. The results indicated that each target compound could be identified from 15 sampling sites, and the total concentration of 14 VOSCs ranged from 2.575 to 52.981 μg L−1. Dimethyl sulfide (DMS) was the most important contaminant with an average concentration of 4.029 μg L−1, a detection rate of 93.33% and a variation coefficient of 0.72. The VOSCs were primarily distributed in suburban and rural sections, and the suburban section was the worst in regard to pollution by VOSCs. Dimethyl trisulfide was primarily distributed in urban and suburban sections of the Xi River due to industrial emissions. Ethanethiol, DMS, and ethyl methyl sulfide, which are typical by-products of microbial anaerobic decomposition from domestic wastewater, were found in abundance in the suburban section. Diethyl sulfide, diethyl disulfide, methyl propyl disulfide, and 1-propyl disulfide representing agricultural nonpoint source pollution were mostly distributed in the rural section.

ORGANIC SULFUR COMPOUNDS III. CONDENSATIONS INVOLVING o-NITROBENZENESULFENYL CHLORIDE

1966 ◽  
Vol 44 (17) ◽  
pp. 2105-2109 ◽  
Author(s):  
R. T. Coutts ◽  
K. W. Hindmarsh ◽  
N. J. Pound
Keyword(s):  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Organic Sulfur Compounds

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