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AssigneesThe University of Western Ontario, LANXESS Corporation
InventorsGoran Stojcevic, Gilles Arsenault, Elizabeth R. Gillies, Colin V. Bonduelle, Matthew J. McEachran
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Functionalized copolymers of isoolefins and conjugated diolefins, methods of preparing said copolymers, and their use as compatibilizers are disclosed. The diolefin monomer units of the co-polymer are modified at the C—C double bond along the backbone of the copolymer to include an oxygen containing functional group such as epoxide, ester or alcohol. The functionalized copolymers improve the wettabilty of a non-hydrophilic surface towards hydrophilic polymer and allows for the formation of homogenous layers of the hydrophilic polymers. In particular, the spreading of a hydrophilic polymer on a non-hydrophilic substrate is facilitated by applying the co-polymers as an interfacial layer between the two incompatible materials. The resulting coated substrates exhibit resistance to protein adsorption and cell growth after grafting. The co-polymers are especially suited in the coating of biomedical devices where a high degree of uniformity of the coated surface is required.
A method of improving wettability of a substrate surface towards a hydrophilic polymer, comprising:
A method of coating a hydrophilic polymer on a non-hydrophilic substrate, the method comprising the steps of:
A compatibilizer comprising a functionalized copolymer comprising repeating units derived from at least one C4-C8 isoolefin and repeating units derived from at least one C4-C16 conjugated diolefin, wherein said copolymer comprises one or more units derived from said at least one conjugated diolefin wherein the C—C double bond along the backbone of the copolymer is functionalized with an oxygen containing functional group.
Dependencies are inferred from the claim text.