Aromatic oligomers.

摘要

Compositions comprising an oligomer which (a) on average comprises at least one in-chain residue of the general formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="26" wi="43" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein Ar<Sup>1</Sup> is an aromatic group, R<Sup>1</Sup> is hydrogen or a hydrocarbyl group, X is a group which activates Ar<Sup>1</Sup> to electrophilic attack, and Y<Sup>1</Sup> is an organic residue bearing a carboxyl substituent; and (b) has one or more pendant and/or terminal acyloxymethyl groups are described. They may be used in dental, electronic and electrical applications.