Dimethyl 4,6-bis(bromomethyl)isophthalate was synthesized by bromomethylation,oxidation,esterification and bromination of 1,3-dimethylbenzene.This was used to initiate the atom transfer radical polymerization of styre...Dimethyl 4,6-bis(bromomethyl)isophthalate was synthesized by bromomethylation,oxidation,esterification and bromination of 1,3-dimethylbenzene.This was used to initiate the atom transfer radical polymerization of styrene successfully.Results showed that the process had some of the good characteristics of controlled/living free radical poly-merization.The molecular weight of the obtained polymer increased linearly with monomer conversion,its molecular weight distribution was very narrow,and a linear relationship between ln([M]0/[M])and polymerization time was found.A well-defined novel structural polystyrene containing two ester groups in the mid-main chain was prepared with con-trolled molecular weight and narrow polydispersity.The structure of the polymer was confirmed by 1H-NMR spectra.After being hydrolyzed,dicarboxy polystyrene was obtained and used to form ionic-bonded supramolecules with 1-dodecanamine as a model of the star-shaped supramolecules.The supramolecules formed were characterized by Fourier transform infrared(FTIR)spectrum.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.20474059)Specialized Research Fund for the Doctoral Program of Higher Education(Grant No.20040358017).
文摘Dimethyl 4,6-bis(bromomethyl)isophthalate was synthesized by bromomethylation,oxidation,esterification and bromination of 1,3-dimethylbenzene.This was used to initiate the atom transfer radical polymerization of styrene successfully.Results showed that the process had some of the good characteristics of controlled/living free radical poly-merization.The molecular weight of the obtained polymer increased linearly with monomer conversion,its molecular weight distribution was very narrow,and a linear relationship between ln([M]0/[M])and polymerization time was found.A well-defined novel structural polystyrene containing two ester groups in the mid-main chain was prepared with con-trolled molecular weight and narrow polydispersity.The structure of the polymer was confirmed by 1H-NMR spectra.After being hydrolyzed,dicarboxy polystyrene was obtained and used to form ionic-bonded supramolecules with 1-dodecanamine as a model of the star-shaped supramolecules.The supramolecules formed were characterized by Fourier transform infrared(FTIR)spectrum.
