Chalcogenide Hybrid Inorganic/organic Polymer (CHIP) materials as improved crosslinking agents for vulcanization
AssigneeArizona Board of Regents on Behalf of the University of Arizona
InventorsDong-Chul Pyun, Richard S. Glass, Kyle Carothers, Yueyan Zhang
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Abstract
Methods of vulcanization using a high content sulfur polymer, instead of elemental sulfur, have been developed. These high sulfur content polymers are referred to as Chalcogenide Hybrid Inorganic/Organic Polymers (CHIP) materials and have good polymer compatibility in that they are soluble in a number of polymers. Furthermore, CHIP materials may have weaker bonds than the S—S bonds of elemental sulfur and thus provide for a higher crosslinking efficiency vulcanization.
Claims20
A composition comprising:
- a. a latex material;
- and
- b. a vulcanizing agent comprising a chalcogenic hybrid inorganic/organic polymer (CHIP) material, wherein the CHIP material comprises:
- i. one or more chalcogenic monomers at a level of at least 45 wt % of the CHIP material, wherein the one or more chalcogenic monomers comprise sulfur and selenium;
- ii. a comonomer at a level in the range of about 5-55 wt % of the CHIP material, wherein the comonomer is co-polymerized with the one or more chalcogenic monomers;
- and
- iii. a termonomer at a level in the range of about 5-45 wt % of the CHIP material, wherein the termonomer is co-polymerized with the one or more chalcogenic monomers and the comonomer, wherein the termonomer is different from the comonomer;
- wherein the comonomer improves miscibility of the vulcanizing agent, wherein the vulcanizing agent allows for a higher crosslinking efficiency vulcanization than elemental sulfur,
- wherein the vulcanizing agent vulcanizes the latex material to provide a crosslinked rubber.
A method of vulcanizing a latex material to form a crosslinked rubber, said method comprising reacting said latex material with a chalcogenic hybrid inorganic/organic polymer (CHIP) material, wherein the CHIP material comprises:
- a. one or more chalcogenic monomers at a level of at least 45 wt % of the CHIP material, wherein the one or more chalcogenic monomers comprise sulfur and selenium;
- and
- b. a comonomer at a level in the range of about 5-55 wt % of the CHIP material, wherein the comonomer is co-polymerized with the one or more chalcogenic monomers;
- c. a termonomer at a level in the range of about 5-45 wt % of the CHIP material, wherein the termonomer is co-polymerized with the one or more chalcogenic monomers and the comonomer, wherein the termonomer is different from the comonomer;
- wherein the comonomer improves miscibility of the vulcanizing agent, wherein the vulcanizing agent allows for a higher crosslinking efficiency vulcanization than elemental sulfur,
- wherein the CHIP material vulcanizes the latex material to provide said crosslinked rubber.
A composition comprising:
- a. a latex material;
- and
- b. a vulcanizing agent comprising a chalcogenic hybrid inorganic/organic polymer (CHIP) material, wherein the CHIP material comprises one or more chalcogenic monomers at a level of at least 45 wt % of the CHIP material, and a comonomer at a level in the range of about 5-55 wt % of the CHIP material, wherein the comonomer is diisopropenylbenzene or a norbornene monomer;
- wherein the comonomer improves miscibility of the vulcanizing agent, wherein the vulcanizing agent allows for a higher crosslinking efficiency vulcanization than elemental sulfur.
Dependencies are inferred from the claim text.