Properties of Poly(Alkylene Oxide) Elastomers

1972 ◽  
Vol 45 (4) ◽  
pp. 900-907 ◽  
Author(s):  
H. L. Hsieh ◽  
R. F. Wright
Keyword(s):  
Ethylene Oxide ◽  
Oxidation Resistance ◽  
Propylene Oxide ◽  
Dynamic Properties ◽  
Glycidyl Ether ◽  
Solvent Resistance ◽  
Alkylene Oxide ◽  
Allyl Glycidyl Ether ◽  
Zinc Acetylacetonate ◽  
Freeze Point

Abstract The catalyst comprised of triisobutylaluminum, zinc acetylacetonate, and water was used to prepare homopolymer of epichlorohydrin; copolymers of epichlorohydrin with propylene oxide, ethylene oxide, and allyl glycidyl ether; and terpolymers of epichlorohydrin, propylene oxide, and allyl glycidyl ether and of epichlorohydrin, ethylene oxide, and allyl glycidyl ether. The vulcanizates of these rubbers provide variations of stress-strain and dynamic properties, freeze point, hardness, and solvent resistance depending on the type and amount of comonomer. In general, these rubbers have excellent heat, ozone, and oxidation resistance as well as oil and solvent resistance.

Poly(alkylene Oxide) Rubbers

1964 ◽  
Vol 37 (1) ◽  
pp. 1-5 ◽  
Author(s):  
J. G. Hendrickson ◽  
A. E. Gurgiolo ◽  
W. E. Prescott
Keyword(s):  
Tensile Strength ◽  
Physical Properties ◽  
Propylene Oxide ◽  
Glycidyl Ether ◽  
High Grade ◽  
Oil Resistance ◽  
Compression Set ◽  
Alkylene Oxide ◽  
Allyl Glycidyl Ether

Abstract A high grade rubber was made by vulcanizing copolymers of propylene oxide and allyl glycidyl ether. The crude polymer contained both crystalline and amorphous fractions. The total polymer could be sulfur cured without fractionation or removing the catalyst—a partly hydrolized ferric alkoxide, resulting from the reaction of FeCl3 with propylene oxide. Variables in the vulcanization recipe were studied, and a tensile strength of 1980 psi with 560% elongation was obtained. Improved tear and oil resistance were observed as compared with SBR rubber. Other physical properties compared favorably with commencal rubbers, except for compression set.

Sign in / Sign up

Export Citation Format

Share Document