Compositions comprising polyacrylate-polysilane block copolymers

1. A composition comprising:

a polyacrylate-polysilane block copolymer of structure (I) and an organic polymer which is different from the block copolymer of formula (I):

wherein

m and n independent of one another, are integers ranging from 2 to 4000;

p is an integer ranging from 0 to 5;

q is an integer ranging from 1 to 5;

R 1 represents hydrogen, straight-chain or branched alkyl group having 1 to 4 carbon atoms;

R 2 represents hydrogen, straight-chain or branched alkyl group having 1 to 18 carbon atoms;

R 3 represents hydrogen, hydroxyl group, straight-chain or branched alkyl group having 1 to 4 carbon atoms, or an C 6 -C 14 -aryl group;

L is a single bond or a bivalent group —NH—, —C(O)NH—, —NHC(O)NH—, —OC(O)NH— or —CH 2 —;

R 4 , R 5 and R 6 independent of one another, represent hydrogen, straight-chain or branched alkyl group having 1 to 8 carbon atoms or a polydimethylsiloxane residue; and

R 7 represents hydrogen or methyl group.

2. The composition of claim 1 , wherein at least one of R 4 , R 5 and R 6 represents a polydimethylsiloxane group.

3. The composition of claim 1 , wherein R 3 represents hydrogen, R 7 represents methyl group and wherein at least one of R 4 , R 5 and R 6 represents a polydimethylsiloxane group.

4. The composition of claim 1 , wherein L represents methylene (—CH 2 —) group and wherein at least one of R 4 , R 5 and R 6 represents a polydimethylsiloxane group.

5. The composition of claim 1 , wherein L represents amine (—NH—) group, amide (—C(O)NH—) group, urea (—NHC(O)NH—) group, or urethane (—OC(O)NH—) group and wherein at least one of R 4 , R 5 and R 6 represents a polydimethylsiloxane group.

6. The composition as claimed in claim 1 , wherein m is an integer ranging from 100 to 1000; n is an integer ranging from 100 to 1000, p is an integer ranging from 0 to 3 and q is an integer ranging from 1 to 3.

7. The composition as claimed in claim 1 , wherein the weight ratio of the polyacrylate block (A) to the polysilane block (B) is in the range of about 1:1.8×10 7 to 6204:1.

8. The composition as claimed in claim 1 , wherein the number average molecular weight of the polydimethylsiloxane group is in the range of about 500 g/mole to about 300,000 g/mole.

9. The composition as claimed in claim 1 , wherein the organic polymer comprises at least one of polyolefins, polyoxides, polyesters, polystyrene, polylactic acid, cellulose, acrylonitrile-butadiene- styrene (ABS), polyamide, polycarbonate, alkyd resins, amino resins, phenol resins, polyurethane resins, epoxy resins, melamine-urethane-formaldehyde resins, urethane-formaldehyde resins, melamine resins and acrylate resins.

10. The composition of claim 9 , wherein the organic polymer is a polypropylene.

11. The composition as claimed in claim 1 , wherein the polyacrylate-polysilane block copolymer is present in the composition in an amount of from about 0.5 to about 90% by weight of the total weight of the composition.

12. The composition of claim 11 , wherein the polyacrylate-polysilane block copolymer is present in the composition in an amount of from about 5% to about 90%.

13. An article prepared from the composition as claimed in claim 1 , wherein the article is a molded article or an extruded article.

14. The article of claim 13 , wherein the article is an automotive part.