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Method for Preparing Tapered Block Copolymers

技术优势

Improved elastic behavior Better mixing in polyethylene and other plastics

技术应用

Thermoplastic elastomers High temperature adhesives Polymer coatings Oxygen barrier films Polymer blend compatibilizers    This technology is available for licensing.

详细技术说明

Researchers at the University of California, Santa Barbara have developed a method for preparing olefin-containing tapered block polymers with a copolymer structure. This method comprises polymerizing a first olefin monomer with a second olefin monomer in the presence of a catalyst to produce a tapered block copolymer structure. These polymers have great promise for use in the design of blends of polyethylene and polar engineering plastics because the polarity gradient along their chain will reduce the energy between chains and lead to better mixing.

*Abstract

A method for preparing olefin-containing tapered block polymers with a copolymer structure.

*IP Issue Date

Jul 13, 2010

*Principal Investigation

Name: Guillermo Bazan

Department:

Name: Steve Diamanti

Department:

Name: Glenn Fredrickson

Department:

Name: Atsushi Hotta

Department:

Name: Vikram Khanna

Department:

Name: Edward Kramer

Department:

附加资料

Patent Number: US7754832B2
Application Number: US2005208395A
Inventor: Bazan, Guillermo C. | Diamanti, Steve | Kramer, Edward J. | Khanna, Vikram | Frederickson, Glenn H. | Hotta, Atsushi
Priority Date: 28 Feb 2003
Priority Number: US7754832B2
Application Date: 19 Aug 2005
Publication Date: 13 Jul 2010
IPC Current: C08F000480 | C08F021206 | C08F022010 | C08F029706
US Class: 526117 | 525242 | 526079 | 526118 | 526171 | 526281 | 526308 | 5263285 | 526329 | 526347
Assignee Applicant: The Regents of the University of California
Title: Block copolyolefins possessing a tapered structure
Usefulness: Block copolyolefins possessing a tapered structure
Summary: The method is used for preparing a polymer, which comprises a tapered block copolymer structure, for use in composition selected from thermoplastic elastomer, adhesive, polymer coating, oxygen barrier film and polymer blend compatibilizer (claimed).
Novelty: Preparing a polymer for use in e.g. thermoplastic elastomer, polymer coating and oxygen barrier film, involves polymerizing two different olefin monomers in the presence of a catalyst that supports living or quasi-living polymerization

主要类别

化工/材料

细分类别

化工/材料应用

申请号码

7754832

其他

Background

Gradient, or tapered, copolymers have a chemical structure with a gradual change of composition along the polymer chain from one monomer unit to another. Tapered block copolymers are superior to traditional block polymers for many applications, but few methods are available for synthesizing such polymers.

Additional Technologies by these Inventors

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• High Energy-Density Polymer Electrolytes for Batteries and Energy Storage
• Water-Soluble ETL Polymers for LEDs
• Zwitterionic Catalyst for Olefin Polymerization
• Zwitterionic Electron Injection Layers for Highly Efficient Polymer LEDs
• Binaphthol-Based Chromophores for Fabrication of Blue LEDs
• Quasi-living metal catalyst for ethylene (homo/co)polymerization
• Polymers Containing Quaternized Nitrogen for Antifouling Coatings
• High Mobility Organic Semiconductors
• Blade Coating On Nanogrooved Substrates Yielding Aligned Thin Films Of High Mobility Semiconductin Polymers

Tech ID/UC Case

22080/2005-587-0

Related Cases

2005-587-0

国家/地区

美国