Telechelic polyolefin and preparation thereof

A polyolefin, telechelic technology, applied in the fields of compounds containing elements of Group 3/13 of the periodic table, organic chemistry, chemical instruments and methods, etc.

Inactive Publication Date: 2014-12-31
UNIV CLAUDE BERNARD LYON 1 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the field of olefin polymerization, living polymerization is practically limited by the production of only one chain per transition metal complex, which poses a problem of production cost

Method used

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  • Telechelic polyolefin and preparation thereof
  • Telechelic polyolefin and preparation thereof
  • Telechelic polyolefin and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0078] The following examples relate to the preparation:

[0079] - a transfer agent of formula (III);

[0080] - an intermediate compound of formula (II);

[0081] - A telechelic polyolefin of formula (I).

[0082] Transfer agent bis(10-undecenyl)magnesium (Mg((CH 2 ) 9 CH=CH 2 ) 2 )Synthesis

[0083] To a suspension of magnesium (2.38 g, 98 mmol) in di-n-butyl ether (100 ml) was added 11-bromo-1-undecene (11.3 ml, 49 mmol) dropwise at 0°C. The reaction mixture was stirred at 0°C for 1 hour and then allowed to warm to room temperature. The resulting suspension was filtered to remove excess magnesium. Dioxane (5.0ml, 59mmol) was added to the filtrate, immediately after which a white precipitate formed. The suspension was stirred for 2 hours, then filtered to obtain Mg((CH 2 ) 9 CH=CH 2 ) 2 Solution in di-n-butyl ether. An aliquot was taken from the solution for concentration determination by titration using i) pyrene-1-acetic acid and ii) HCl(aq) ...

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Abstract

Telechelic polyolefin of formula (I) and its derivatives: CH2=CH-(CH2)p-A-Z wherein: A represents a (co)polymer comprising at least 95 mol % of (CH2-CH2) units; Z is selected from the group comprising halogens, thiols and their derivatives, azides, amines, alcohols, the carboxylic acid function, isocyanates, silanes, phosphorous derivatives, dithioesters, dithiocarbamates, dithiocarbonates, trithiocarbonates, alkoxyamines, the vinyl function, dienes, and the group -A- (CH2)p-CH=CH2; p is a whole number between 1 and 20, most advantageously between 6 and 9.

Description

technical field [0001] The invention described herein relates to telechelic polyolefins having reactive groups present at the chain ends of each polymer. Polymers of this type can be used as precursors for incorporation of said polymers into, for example, hydrophilic or hydrophobic environments, or organic, inorganic, hybrid or composite materials. Background technique [0002] In general, polymers that are capable of subsequent polymerization or reaction according to the reactivity of their chain ends are referred to as "telechelic polyolefins". In such molecules, the reactive groups at the end of the chain do not originate from the monomer. [0003] The prior art includes monofunctionalized polyethylenes (see eg Mazzonlini et al., Polymer Chemistry, 2010, 1, 793-800). There is no obvious chemical process for obtaining telechelic polyolefins from these monofunctionalized polyethylenes. [0004] Many synthetic routes to telechelic polymers have been described in the liter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/22C08F8/34C07F3/02
CPCC07F3/02C07F3/06C08F110/02C08F2/38C08F2810/40C08F8/00C08F8/04C08F8/22C08F8/30C08F8/34C07F5/062C08F8/26C08F8/42
Inventor C·布瓦松F·达戈斯托I·吉尔曼
Owner UNIV CLAUDE BERNARD LYON 1
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