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Author: Subject: What effect does Chloroformhave on rubber

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[*] posted on 19-1-2007 at 01:32
What effect does Chloroformhave on rubber

What effect does Chloroformhave on rubber? Any comments would be appreciated. Thanks
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[*] posted on 19-1-2007 at 04:46

I would think that it would depend on how cross linked the rubber was. Low XL density may result in the rubber disolving. Highly XL'ed and you may just get any dye in it leaching out. Try a small bit and see what happens.

How do you chlorinate rubber anyway (as in chlorinated rubber) - Maybe disolve the rubber in carbon tetrachloride and heat???

[Edited on 19-1-2007 by DrP]
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[*] posted on 19-1-2007 at 12:50

Swelling at first. Extraction of dye into chloroform is the second.
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[*] posted on 19-1-2007 at 16:35
Rubber Rocket Propellant?

I've noticed the rubber stoppers that are quite hard and
tan colored are more resistant than the black softer ones.

.....from Wikipedia......

Neoprene is the DuPont Performance Elastomers trade name for a family of synthetic rubbers based on polychloroprene (polymer form of Chloroprene). Neoprene was invented by DuPont scientists after Dr. Elmer K. Bolton of DuPont laboratories attended a lecture by Fr. Julius Arthur Nieuwland, a professor of chemistry at the University of Notre Dame. Fr. Nieuwland's research was focused on acetylene chemistry and during the course of his work he produced divinyl acetylene, a jelly which firms into an elastic compound similar to rubber when passed over sulfur dichloride. After DuPont purchased the patent rights from the university, Wallace Carothers of DuPont took over commercial development of Nieuwland's discovery in collaboration with Nieuwland himself. DuPont focused on monovinyl acetylene and reacted the substance with hydrogen chloride gas, manufacturing chloroprene.

Here is a little tidbit you pyromaniacs may like to know.
Neoprene is a rocket propellant. Maybe like burning rubber dust.

Neoprene Uses from wikipedia

* molded: plumbing fixture; gaskets; hose; mechanical seal; mechanical belt; solid rocket propellant; balls; diaphragms as in diaphragm valve

* extruded: garden hose; inner tube; laboratory tube

[Edited on 20-1-2007 by bio2]
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