Fractionation and molecular characteriza
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O. Chiantore; P. Cinquina; M. Guaita
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Article
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1994
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Elsevier Science
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English
⚖ 277 KB
A~tract--A sample of EPDM rubber containing 61.4 wt% of ethylene units, 27.2 wt% of propylene units and 11.5 wt% of ethylidene norbornene units, dissolved in diphenylmethane, has been separated into 20 fractions by slowly cooling from 160 to 50°C (temperature gradient fractionation). It is shown by