Brush copolymers

Details Brush copolymers Brush copolymers

2011-06-14

2011-06-14

Teskin, Fred M (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S285000, C525S327800, C525S902000, C526S222000, C428S500000, C977S788000

Reexamination Certificate

active

07960479

ABSTRACT:
A copolymer of formula 1 in which M1is a unit obtainable from ring opening metathesis polymerization (ROMP); R is an alkyl, ether, ester or aryl unit; M2and M3are independently selected from units obtainable by reversible addition fragmentation chain transfer polymerization (RAFT); X is a terminal unit selected from the group consisting of dithioester, trithiocarbonate, xanthate; and m is an integer from 2 to 1 million, n is an integer from 2 to 500,000 and k is an integer from 2 to 500,000.

REFERENCES:
patent: 03/040218 (2003-05-01), None
Xu et al, Synthesis and Characterization of . . . Poly(2-hydroxyethyl methacrylate-co-styrene)-graft-poly(e-caprolactone) by Sequential Controlled Polymerization, J. Poly. Sci.: Part A: Poly. Chem., 42, 5523-5529 (2004).
PCT International Search Report in PCT application PCT/EP2007/061812.
Mahanthappa et al., “Synthesis of ABA Triblock Copolymers by a Tandem ROMP-RAFT Strategy”, Macromolecules 2005, vol. 38, pp. 7890 to 7894.
Patton et al., “A Versatile Synthetic Route to Macromonorners via RAFT Polymerization”, Macromolecules 2006, vol. 39, pp. 8674-8683.
Schimetta et al. “Ring-Opening Metathesis Polymerization fo the Bis(methyl carbonate)and Bis(S-methyl dithiocarbonate)of Norbornene and Thermal Conversion to Poly(cyclopentadienylenevinylene)”, Macromolecules, 1993, vol. 27, No. 14, pp. 3769-3772.

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