US 6,887,962 B2 · Processes based on atom (or group) transfer radical polymerization and novel (co)polymers having useful structures and properties

Abstract

Improved processes for atom (or group) transfer radical polymerization (ATRP) and novel polymers have been developed and are described. In certain embodiments, novel copolymers comprising a least one polymeric branch or polymeric block with a predominantly alternating monomer sequence are described. Novel copolymers comprising a least one polymeric branch or polymeric block with a gradient monomer structure are described. Additionally, novel copolymers comprising a least one polymeric branch or polymeric block with a predominantly periodic monomer sequence are also described. Novel copolymers having a water soluble backbone and at least two hydrophobic polymeric branches grafted to the water soluble backbone are also described.

Claims10

Dependent claims

A gradient copolymer, comprising:

at least one polymeric segment with a predominantly gradient monomer structure, comprising
at least one first monomer unit derived from a radically (co)polymerizable monomer;
and
at least one second monomer unit derived from a radically (co)polymerizable monomer, wherein the concentration of the second monomer units changes gradually and in a systematic and predictable manner along the polymeric segment due to a difference in reactivities between the first monomer and the second monomer;
at least one of an average degree of polymerization of at least 3 or a number average molecular weight of at least 250 g/mol;
and
a molecular weight distribution less than 2.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/289,545Filed 7 Nov 2002 · continuation

Priority

15 Nov 1995

Published

US 2003/0181619 A125 Sep 2003

Granted

3 May 2005

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

C08F 271/02
Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00: on to…
C08F 4/00
Polymerisation catalysts
C08F 4/40
Polymerisation catalysts: redox systems
C08F 110/10
Butenes: isobutene

Family

Application08/559,309Parent of this division · filed 15 Nov 1995

Application09/018,554Parent of this continuation · filed 4 Feb 1998

US 5,807,937 AParent of this division · filed 15 Sep 1998

US 2003/0181619 A1Pre-grant publication · published 25 Sep 2003

US 6,538,091 B1Parent of this continuation

Application09/018,554Parent of this division

US 6,887,962 B2This patent

From the US filing history. Foreign family members aren’t listed.

Processes based on atom (or group) transfer radical polymerization and novel (co)polymers having useful structures and properties

Life of this patent

Processes based on atom (or group) transfer radical polymerization and novel (co)polymers having useful structures and properties

Life of this patent

Abstract

Claims10