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2007, Volume 1, Issue 2

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Frontiers of Chemical Science and Engineering >> 2007, Volume 1, Issue 2 doi: 10.1007/s11705-007-0026-4

Synthesis of mid-dicarboxy polystyrene by ATRP and formation of ionic-bonded supramolecules

Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;

Available online: 2007-06-05
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Abstract

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 polymerization. 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([]/[]) and polymerization time was found. A well-defined novel structural polystyrene containing two ester groups in the mid-main chain was prepared with controlled molecular weight and narrow polydispersity. The structure of the polymer was confirmed by H-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.

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