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US 8,557,927 B2Granted
Comb-shaped graft copolymers and methods of manufacturing the same
AssigneeIndustrial Technology Research Institute
InventorsMao-Lin Hsueh, Cheng-Wei Yeh, Yi-Zhen Chen, Kuo-Chen Shih
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Abstract
The disclosed is a comb-shaped graft copolymer, including a back bone of PMMA and side chains of a random copolymer, a block copolymer, or a homopolymer polymerized of a monomer having a carbon-carbon double bond. The monomer can be alkyl acrylate, styrene, and the likes. The side chains terminal is grafted to a nitro-oxy compound.
Claims11
A comb-shaped graft copolymer, having a formula as below:
- wherein R1 is
- R2 is hydrogen or a methyl group;
- R3 is an ester group, an alkyl ester group, an aryl group, or a heteroaryl group;
- x is a repeating number of about 10 to 106;
- y is a repeating number of about 10 to 103;
- and
- z is a repeating number of about 10 to 105.
4 more elements
A method of forming a comb-shaped graft copolymer, comprising:
- heating a linear poly(methyl methacrylate), a peroxide free radical initiator, and a nitro-oxy compound to form a free radical macroinitiator;
- and
- heating the free radical macroinitiator and a monomer having a carbon-carbon double bond to form a comb-shaped graft copolymer,
- wherein the linear poly(methyl methacrylate) has a formula as below:
- wherein the monomer having the carbon-carbon double bond has a formula as below:
- wherein the free radical macroinitiator has a formula as below:
- wherein the comb-shaped graft copolymer has a formula as below:
- wherein R1 is
- R2 is hydrogen or a methyl group;
- R3 is an ester group, an alkyl ester group, an aryl group, or a heteroaryl group;
- x is a repeating number of about 10 to 106;
- y is a repeating number of about 10 to 103;
- and
- z is a repeating number of about 10 to 105.
11 more elements
Dependencies are inferred from the claim text.