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State pentaerythritol with hexamethylene di-isocyanate

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Reference no: EM13186766

If you mix an ethylene oxide polyol that has been generated from pentaerythritol with hexamethylene di-isocyanate, where the ratio of hydroxyl groups to isocyanate groups is 1:1, what fraction of the isocyanate groups must react to create a "Flory" gel?

Reference no: EM13186766

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