<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">polymers</topic></authority><related type="narrower"><topic>copolymers</topic></related><related type="narrower"><topic>polymethyl methacrylate</topic></related><related type="narrower"><topic>polyethylene glycol</topic></related><related type="narrower"><topic>perfluoropolyether</topic></related><related type="narrower"><topic>sodium carboxymethyl cellulose</topic></related><related type="narrower"><topic>polyolefin</topic></related><related type="narrower"><topic>oligomers</topic></related><related type="narrower"><topic>biopolymers</topic></related><related type="narrower"><topic>isobutyl methacrylate</topic></related><related type="narrower"><topic>sodium polyacrylate</topic></related><related type="narrower"><topic>polytetrafluoroethylene</topic></related><related type="narrower"><topic>polybutyl methacrylate</topic></related><related type="narrower"><topic>geopolymers</topic></related><related type="narrower"><topic>cyanoacrylate</topic></related><related type="narrower"><topic>ethylene tetrafluoroethylene</topic></related><related type="narrower"><topic>photopolymers</topic></related><related type="broader"><topic>compounds</topic></related><variant type="other"><topic>polymer</topic></variant><variant type="other"><topic>polymeride</topic></variant> <note xml:lang="en"><![CDATA[ High molecular weight compounds formed by the combination of one or more monomers, formed by the multiplication of molecules of the same species to produce a new compound with the same empirical formula but with higher molecular weight. Use "copolymers" for materials that combine molecules of differing chemical compounds. ]]></note></mads>