Abstract
The molecular motion of poly(oxymethylene) in dilute phenol solution is studied by using the coupled spin relaxation of a methylene group ( 13 CH 2 ). The motional anisotropy is smaller than those measured for hydrocarbon chains in solution. Unlike the hydrocarbons, poly(oxymethylene) is most stable in the gauche conformer, which leads to helical chain configurations. The smaller anisotropy may reflect the lack of correlated motions of a few vonds in the polymer chain
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