Styrene (St) and maleic anhydride (MAh) can form comonomer pairs (Charge Transfer Complex, CTC), which can be alternately copolymerized under ordinary free radical polymerization or living controlled polymerization techniques to obtain alternating copolymer named P(St-alt-MAh) [24-28, 33].
In the bulk copolymerization system, because of lower solubility of maleic anhydride and alternating copolymer formed in styrene, copolymer is possible to precipitate in the process of polymerization with increase of molecular weight.
The polydispersity index (PDI) of alternating copolymer obtained will be very narrow.
The typical H NMR spectrum of alternating copolymer was shown as in Fig.
HO-) and it is possible to direct up processes away from the formation of alternating copolymers to the formation of random copolymers with different compositions by using naphthalene as an electron donor substance that forms a donor-acceptor complex with a double bond of acceptor MA.
The formation of alternating copolymers, predominantly at [less than or equal to]50 mol% of NTBA in the monomer feed, was confirmed by the results of copolymer composition-property relationship studies.
Cowie, Alternating Copolymers, Plenum Press, New York, NY, USA, 1985.
Fleischer, "Alternating copolymers for novel polymer electrolytes: the electrochemical properties," Electrochimica Acta, vol.
