Give the decreasing order of reactivities of the following monomers towards anionic addition polymerisation. |
I. \[\operatorname{Me}-CH=C{{H}_{2}}\] |
II. \[\operatorname{Ph}\,-\,\,CH=C{{H}_{2}}\] |
III. \[{{\operatorname{CH}}_{2}}=CH\,-CN\] |
IV. \[{{\operatorname{CH}}_{2}} = CC{{l}_{2}}\] |
V. \[{{\operatorname{CH}}_{2}} = C{{F}_{2}}\] |
VI. \[{{F}_{2}}C=C{{F}_{\text{2}}}\] |
The correct order is |
A) \[\operatorname{VI}>III>V>IV>II\]
B) \[\operatorname{VI}>V>III>IV>II>I\]
C) \[\operatorname{VI}>IV>V>III>II>I\]
D) \[\operatorname{VI}>V>IV>II>I>III\]
Correct Answer: A
Solution :
Anionic polymerisation is favoured by the presence of electron donating group {e.g.,-X, -COOR, -CN etc.). More the number of electron donating group, the more stable is the intermediate carbanion, and consequently more favoured is the stability ofYou need to login to perform this action.
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