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, Taeheon Lee, Kyung-Seok Kang
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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 vulcanizing agent comprising a chalcogenic hybrid inorganic/organic polymer (CHIP) material, wherein the CHIP material comprises:
- a) one or more chalcogenide monomers at a level of at least 45 wt % of the CHIP material;
- and
- b) a comonomer at a level in the range of about 5-55 wt % of the CHIP material, wherein the comonomer is diisopropenylbenzene monomer, a norbomene monomer, a norbomadiene monomer, or a derivative thereof.
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;
- and
- 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 chalcogenic monomers;
- wherein the vulcanizing agent vulcanizes the latex material to provide a crosslinked rubber.
A method of preparing a vulcanized rubber, comprising:
- a. providing a latex material;
- b. preparing a vulcanizing agent comprising a chalcogenic hybrid inorganic/organic polymer (CHIP) material, comprising co-polymerizing at least 45 wt % of one or more chalcogenic monomers with about 5-55 wt % of a comonomer;
- and
- c. vulcanizing the latex material with the vulcanizing agent to provide a crosslinked rubber.
Dependencies are inferred from the claim text.