Title: Structured copolymers and their use as absorbents, gels and carriers of metal ions

Abstract

Dense star polymers or dendrimers having a highly branched interior structure capable of associating or chelating with metal ions are modified by capping with a hydrophobic group capable of providing a hydrophobic outer shell. The modified dendrimers are useful for dispersing metal ions in a non-aqueous polymer matrix. Also dense star polymers or dendrimers having a highly branched hydrophilic interior structure are modified by capping with a hydrophobic group capable of providing a hydrophobic outer shell, which modified polymers are useful as gels and surfactants.

Inventors:

Hedstrand, David M ^[1]; Helmer, Bradley J ^[1]; Tomalia, Donald A ^[1]

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+ Show Inventor Affiliations

1. Midland, MI

Issue Date:

Mon Jan 01 00:00:00 EST 1996

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

OSTI Identifier:

870620

Patent Number(s):

5560929

Assignee:

Dow Chemical Company (Midland, MI)

Patent Classifications (CPCs):

A - HUMAN NECESSITIES A01 - AGRICULTURE A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61K - PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES

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A - HUMAN NECESSITIES A01 - AGRICULTURE A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF

A01N25/10 - Macromolecular compounds

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61K - PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES

A61K47/59 - obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
A61K47/595 - {Polyamides, e.g. nylon
A61K47/6949 - {inclusion complexes, e.g. clathrates, cavitates or fullerenes}

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C211/29 - the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
C07C233/11 - with carbon atoms of carboxamide groups bound to carbon atoms of an unsaturated carbon skeleton containing six-membered aromatic rings
C07C237/20 - the carbon skeleton containing six-membered aromatic rings

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

C08G65/26 - from cyclic ethers and other compounds
C08G65/332 - containing carboxyl groups, or halides, or esters thereof
C08G73/02 - Polyamines
C08G73/0206 - {Polyalkylene
C08G73/024 - {Polyamines containing oxygen in the form of ether bonds in the main chain}
C08G73/028 - {Polyamidoamines}
C08G83/003 - {Dendrimers}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

C08L101/005 - {Dendritic macromolecules}
C08L25/00 - Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
C08L25/06 - Polystyrene
C08L2666/04 - Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00
C08L71/02 - Polyalkylene oxides
C08L79/02 - Polyamines

C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES

C12N15/87 - Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation

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DOE Contract Number:  

W-7405-ENG-48

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

structured; copolymers; absorbents; gels; carriers; metal; dense; star; polymers; dendrimers; highly; branched; interior; structure; capable; associating; chelating; modified; capping; hydrophobic; providing; outer; shell; useful; dispersing; non-aqueous; polymer; matrix; hydrophilic; surfactants; star polymers; outer shell; polymer matrix; dense star; star polymer; hydrophobic outer; structure capable; highly branched; interior structure; modified polymer; branched interior; /424/521/525/