Respuesta :
In decreasing order of cationic polymerization potential, the following groups of monomers are CH2=CHC6H4(OCH3)>CH2=CHC6H4(CH3)>CH2=CHC6H4(NO2).
What kind of alkenes do cationic polymerizations favor?
Cationic polymerization works well with alkenes that produce delocalized cations. Catalytic techniques can be used to polymerize styrene, PhCH=CH2, butadiene, CH2=CHCH=CH2, and the related natural product isoprene, CH2=C(CH3)CH=CH2.
What kind of monomers are good illustrations for each situation of cationic and anionic polymerization, respectively?
Anionic polymerization occurs when monomers containing electron-withdrawing groups, such as nitrile, carboxyl, phenyl, and vinyl, are combined. Cationic Polymerization: Some examples of monomers employed in the cationic polymerization are alkenes with alkoxy, phenyl, vinyl, and 1,1-dialkyl substituents.
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