Oligomeric materials for UV blocking applications and methods thereof
AssigneeAgency for Science, Technology and Research
InventorBalamurugan Ramalingam
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Abstract
The present invention describes an oligomer for use as a UV stabiliser. In particular, the oligomer is suitable for use as a UV stabiliser in a polymer matrix. The present invention also describes a method of forming said oligomer. The method of forming said oligomer comprises a polymerising step, wherein the polymerising step comprises forming a C—C bond on the hydroxyphenyl ring of a monomer. In preferred embodiments, the oligomer is formed from polymerizing bio-derived monomer such as curcumin, its hydrogenated analogue, and an aldol condensation product of cyclic ketone and vanillin.
Claims20
An oligomer of Formula (I):
- wherein X is selected from a heteroatom, C1-C8 acyclic, cyclic or heterocyclic linker;
- and
- n is an integer selected from 2 to 15;
- wherein the oligomer does not contain a metal impurity.
A method of forming an oligomer, the method including the step of:
- a) providing a monomer of Formula (II)
- wherein X is selected from a heteroatom, C1-C8 acyclic, cyclic or heterocyclic linker;
- and
- b) polymerising the monomer to form an oligomer of Formula (I);
- wherein the polymerising step comprises forming a C—C bond on the hydroxyphenyl ring of Formula (II);
- wherein the polymerizing step is catalysed by an enzyme.
A composite, comprising:
- a) an oligomer of Formula (I)
- wherein X is selected from a heteroatom, C1-C8 acyclic, cyclic or heterocyclic linker;
- and
- n is an integer selected from 2 to 15;
- and
- b) a polymer matrix.
Dependencies are inferred from the claim text.