Using oligomers produced by the interaction of [epsilon]-caprolactam with alcohols and amines as modifiers of elastomer composites based on unsaturated rubbers

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Date: Apr. 2009
Publisher: Sage Publications Ltd. (UK)
Document Type: Report
Length: 827 words
Lexile Measure: 1670L

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The introduction of heterochain oligoamides into blends of diene elastomers is of great practical and theoretical interest, as it makes it possible to produce the most adequate synthetic analogues of natural rubber containing protein components as modifying substances [1, 2]. A large proportion of methods for modifying isoprene rubber (SKI) aim to improve the cohesion and adhesion to reinforcing elements of complex articles manufactured from elastomers. It is also well known that amine and amide compounds based on [epsilon]-caprolactam can have a modifying effect on elastomer composites based on unsaturated rubbers [3].

The objective of the present work was to study the possibility of using a number of oligomers produced by the interaction of [epsilon]-caprolactam with alcohols and amines of different structure as modifiers of elastomer composites based on unsaturated rubbers.

The synthesis of the proposed modifiers by the reaction of [epsilon]-caprolactam (excess) with mono- and polyhydric alcohols and amines was carried out in an autoclave or in a round-bottomed flask equipped with a stirrer, a calcium chloride tube, and a reflux condenser until stabilisation of the amine nitrogen content in the oligomers. The products formed were ground, washed with hot distilled water until the initial substances had been completely removed (according to chromatographic analysis data),...

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Gale Document Number: GALE|A241280138