(a)Give the decreasing order of reactivites of the following monmers towards catitopm addition polymerisation. (I)MeCH=CH_(2) (II)PhCH=CH_(2) (III)CH_(2)=CH-COOMe (IV)CH_(2)=CH=Cl (b)Give the decreasing order of reactivities of the following monomers towards anionic addition polymerisation. (I)Me=CH=CH_(2) (II)PhCH=CH_(2) (III)CH_(2)=CH=CN (IV)H_(2)C=CCl_(2) (v)H_(2)C=CF_(2) (VI)F_(2)C=CF_(2)

(a)Give the decreasing order of reactivites of the following monmers t

1.	(a)Give the decreasing order of reactivites of the following monmers towards catitopm addition polymerisation. (I)MeCH=CH_(2) (II)PhCH=CH_(2) (III)CH_(2)=CH-COOMe (IV)CH_(2)=CH=Cl (b)Give the decreasing order of reactivities of the following monomers towards anionic addition polymerisation. (I)Me=CH=CH_(2) (II)PhCH=CH_(2) (III)CH_(2)=CH=CN (IV)H_(2)C=CCl_(2) (v)H_(2)C=CF_(2) (VI)F_(2)C=CF_(2)
Answer» SOLUTION :(a)Cationic polymerisation is favoured by the peresence of`EDG(e.g.,Megroup`.The more the`EDG`,the more stable is the intermediate carbocation,and as a RESULT more favoured is the cationic polymerisation. stability ofis (II) (I) The decreasing reactivity order towards cation polymerisation is(II)gt(I)gt(IV)gt(III). (b) Anion polymetic is favouable by the presence of `EWG(e.g.,rarr-X,-COOR,-CN,ETC)`The more the`EWG,the more stable is the intermediate carbonion and consequently more favoured is the anionic POLYMERSATION. Stability of The decreasing reactivity order towards anion polymersation is(VI)gt(III)gt(V)gt(IV)gt(II)gt(I).