Nonionic telechelic polymers incorporating polyhedral oligosilsesquioxane (POSS) and uses thereof
AssigneeUniversity of Connecticut
InventorsPatrick T. Mather, Byoung-Suhk Kim, Qing Ge, Changdeng Liu
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Abstract
Amphiphilic telechelics incorporating polyhedraloligosilsesquioxane (POSS) synthesized by direct urethane linkage between the diol end groups of polyethylene glycol (PEG) homopolymers and the monoisocyanate group of POSS macromers. The hydrophobicity of the amphiphilic telechelics can be varied by using PEG homopolymers of increasing MW, providing for control over molecular architecture by hydrophilic/hydrophobic balance. Methods for synthesizing the amphiphilic telechelics and their use as surfactants, thickening agents, additives to plastic such as PMMA′(Plexiglass), epoxyadhesives for improving their properties are also disclosed.
Claims19
An amphiphilic telechelic incorporating POSS having the following structure
- wherein R is selected from the group of cyclohexyl, cyclopentyl. cyclocetyl, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, styryl, vinyl, allyl, cthylphenyl, phenyl, biphonyl, and naphithyl;
- and n is 1 to 23,000.
A method for forming amphiphilic telechelics incorporating POSS which comprises reacting polyethylene glycol homopolymer and POSS macromer, wherein the monoisocyanate groups of two of said POSS macromers are directly linked to the diol end groups of said polyethylene glycol homopolymer, and wherein the amphiphilic telechelic incorporating POSS has the structure
- wherein R is an unreactive aliphatic or aryl group and n is 1 to 23,000.
Dependencies are inferred from the claim text.