| http://www.w3.org/ns/prov#value | - The reprecipitated polymer was dried in vacuo. .sup.1 H NMR (CDCl.sub.3): 2.2(t, --CH.sub.2CO.sub.2 C(CH.sub.3).sub.3, ester ended branches), 1.6(m, --CH.sub.2 CH.sub.2 CO.sub.2 C(CH.sub.3).sub.3, ester ended branches), 1.45(s, --C(CH.sub.3).sub.3), 0.95-1.45(m, CH and other CH.sub.2), 0.75-0.95(m, CH.sub.3, ends of hydrocarbon branches orends of chains).
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