Citation:
TIAN Peng, GAO Bao-Jiao, ZHANG Yan-Yan. Surface Chemical Modification of Crosslinked Polystyrene Microspheres and Immobilization of Pyridyl Porphyrins[J]. Chinese Journal of Applied Chemistry,
;2010, 27(12): 1376-1380.
doi:
10.3724/SP.J.1095.2010.00147
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Crosslinked polystyrene microspheres(CPS) were first chloromethylated with non-carcinogenic 1,4-bis(chloromethoxy) butane(BCMB) to form chloromethylated microspheres(CMCPS).Then quaternization reaction between CMCPS microspheres and 4-pyridylaldehyde was carried out to modify the CPS microspheres with 4-pyridylaldehyde(PyAL-CPS).The effects of main factors on the quaternization reaction were examined,and the synthetic conditions were optimized. The suitable temperature and appropriate solvent are 60℃ and CCl4,respectively. Finally,Alder reaction at the interface of solid/solution between 4-pyridylaldehyde on the surface of modified microspheres and pyrrole was performed to form the functional microspheres(PyP-CPS),on which the formation of pyridyl porphyrin(PyP) could be achieved. The PyP-CPS formation were characterized by using IR and UV-Vis while and the loading of PyP was demonstrated by forming Zn-PyP complex.
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