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A polyolefin reactive telechelic pre-polymer

A prepolymer, polyolefin technology, applied in the field of manufacturing polyolefin reactive telechelic prepolymer, can solve the problems of weakened mechanical properties, poor functionalization position and quantity control, etc.

Pending Publication Date: 2018-04-03
DOW GLOBAL TECH LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most methods for incorporating reactive groups into polyolefins involve post-polymerization reactions, which often provide poor control over the location and amount of functionalization and lead to weakened mechanical properties

Method used

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  • A polyolefin reactive telechelic pre-polymer
  • A polyolefin reactive telechelic pre-polymer
  • A polyolefin reactive telechelic pre-polymer

Examples

Experimental program
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example

[0038] The following examples illustrate the invention but are not intended to limit the scope of the invention.

[0039] Chain transfer agent (CTA) synthesis

[0040] Using Biochimica et Biophysica Acta (BBA); He et al., 1995, vol. 1253, p. 117 and Macromolecules Nagarkar, et al. 2012, vol. 45, p. 4447 A tert-butoxycarbonyl-protected amino chain transfer agent is made by the method described in ; and is shown in Reaction Scheme 1 below:

[0041]

[0042] plan 1

[0043] Specifically, the bromine in 1,4-dibromo-2-butene was replaced by phthalimide in a nucleophilic attack to give compound 1; removal of this group under acidic conditions gave compound 2, Di-hydrochloride salt of diamino compound. Derivatives of this di-amino compound are then protected with tert-butoxycarbonyl to obtain compound 3, but-2-ene-1,4-diyl(E)-di-tert-butyl dicarbamate.

[0044] As shown in Scheme 2 below, di-tert-butyl but-2-ene-1,4-diyl(E)-dicarbamate was then contacted as chain transfer agen...

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Abstract

A dicarbamate telechelic unsaturated polyolefin pre-polymer comprising a reaction product of reacting alkyl-cis-cyclooctene and optionally cis-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions is provided.

Description

technical field [0001] The present invention relates to a method for producing polyolefin reactive telechelic prepolymer. Background technique [0002] Polyolefins are useful materials as high molar mass polymers. The high chemical and oxidation resistance of saturated polyolefin materials coupled with competitive price makes saturated polyolefin materials highly desirable for the plastics industry. It has been demonstrated that the controlled inclusion of functional groups on polyolefins can lead to significant enhancements in properties. However, despite the large number of materials and applications derived from polyolefins, the manufacture of their prepolymer forms remains an underexplored field. The precise and controllable functionalization of polyolefins required to form fast-curing elastomers and high molecular weight polymers has been challenging. Most methods for incorporating reactive groups into polyolefins involve post-polymerization reactions, which often ha...

Claims

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Application Information

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IPC IPC(8): C08G18/32C08G73/06C08G18/76C08G73/02C08G61/08
CPCC08G18/3228C08G18/7621C08G18/7671C08G61/08C08G73/024C08G73/0273C08G73/0638C08G2261/135C08G2261/1412C08G2261/1644C08G2261/3322C08G2261/418C08G2261/74C08G2261/62C08G2261/80C08G2261/76C08G73/0213C08G2261/1414C08G2261/1432
Inventor H·马丁内斯M·A·希尔迈尔M·玛塔J·C·蒙罗K·L·沃尔顿
Owner DOW GLOBAL TECH LLC
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