by: Budiman Anwar

IONIC & COORDINATION POLYMERIZATION

ANIONIC POLYMERIZATION

Monomer Requirements

INITIATORS

MECHANISM & KINETICS

“LIVING” POLYMERS

The “Living” Polymers can be “killed” by addition of a termination agent, for example, water, at the end of the reaction.

CATIONIC POLYMERIZATION

INITIATORS

MECHANISM Initiation:

A + RH ⇄ H+AR (K, A=katalis; RH=kokatalis)H+AR + M HM+ + RA (ki)

Propagation:HM+AR + M HM2

+ + RA (kp) ….

HMn+AR + M HMn+1

+ + RA (kp) Transfer:

HMx+AR + M Mx + HM+AR (ktr)

TerminationHMn

+AR Mn + H+AR (kt)

KINETICS

COORDINATION POLYMERIZATION