Question

A linear polyethylene molecule has a RMM of 84000

a.) Calculate the length of the fully extended chain, assuming no distortion of valence angles or bond lengths.

b.) Calculations based on a faxed valence angle of 109.5, and completly free rotation about each bond five the result that a linear PE molecule containing y C-C bonds is equivalent to a freely jointed chain made up of y/3 segments. using this result, find the root-mean-square end-to-end distance R of the PE molecule , and the rms distance of chain elements from the center of gravity of the chain.

Answer 1

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