Functionalized linear and cyclic polyolefins

Patent metadata

Field	Value
Publication number	US-9890239-B2
Application number	US-201414915822-A
Country	US
Kind code	B2
Filing date	Sep 4, 2014
Priority date	Sep 4, 2013
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

This invention relates to methods and compositions for preparing linear and cyclic polyolefins. More particularly, the invention relates to methods and compositions for preparing functionalized linear and cyclic polyolefins via olefin metathesis reactions. Polymer products produced via the olefin metathesis reactions of the invention may be utilized for a wide range of materials applications. The invention has utility in the fields of polymer and materials chemistry and manufacture.

First claim

The claimed invention is:

1. A method for making a cyclic polypentenamer, comprising:
contacting a cyclic olefin monomer with a silica supported olefin metathesis catalyst; and
subjecting the cyclic olefin monomer and the silica supported olefin metathesis catalyst to a ring opening metathesis polymerization reaction,
wherein the silica supported olefin metathesis catalyst is of the formula (XX):

where n is 3 and m is 11, or n is 11 and m is 3, or n is 11 and m is 6, and
wherein the cyclic olefin monomer is represented by the structure of formula (A*):

wherein R A1* is selected from: H, OH, NH 2 , CH 2 OH, C(CH 3 ) 3 , or Si(CH 3 ) 3 , or wherein the cyclic olefin monomer is represented by the structure of formula (D*):

wherein R A2* is selected from: H, OH, NH 2 , CH 2 OH, C(CH 3 ) 3 , or Si(CH 3 ) 3 .

2. The method of claim 1 , where n is 3 and m is 11.

3. The method of claim 1 , wherein the cyclic polypentenamer has the structure:

where n is an integer such that the cyclic polypentenamer has a number average molecular weight M n in the range of 0.13 kDa to 10 kDa.

4. The method of claim 1 , wherein the cyclic polypentenamer has the structure:

where n is an integer such that the cyclic polypentenamer has a number average molecular weight M n in the range of 0.16 kDa to 10 kDa.

Assignees

• California Inst Of Techn

Inventors

• Tuba Robert
• Grubbs Robert H

Classifications

• C08L65/00

  Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C08L7/00 - C08L57/00, C08L61/00 take precedence); Compositions of derivatives of such polymers · CPC title

• C08G2261/419

  Acyclic diene metathesis [ADMET] · CPC title

• C08G2261/3321

  derived from cyclopentene · CPC title

• C08G2261/1422

  containing OH groups · CPC title

• C08G2261/142

  Side-chains containing oxygen · CPC title