<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31370875</termId><termName>ionomer polymer</termName><termType>PT</termType><termNote><![CDATA[ Polymer composed of macromolecules in which a small but significant proportion of the constitutional units has ionic or inonizable groups, or both. ]]></termNote><termCreatedDate>2026-03-30 20:40:01</termCreatedDate><relation><relationType>UF</relationType><termId>31370876</termId><termName>ionomers</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31370877</termId><termName>polymer, ionomer</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31340150</termId><termName>thermoplastic</termName><termType>PT</termType></relation></term>  </Zthes>