(Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry,Nankai University, Tianjin, 300071, PR China)
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DOI:
10.7502/j.issn.1674-3962.2012.06.07
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Abstract:
Controllable largepore mesoporous hollow silica nanospheres (LMHSN) with large surface area (1 01811 m2/g) 〖JP+1〗and mesoporous width (121 nm) was synthesized through a general method. Firstly, responsive block copolymers poly (ethylene glycolbNisopropyl acrylamide) (PEG114bPNIPAm130) and poly (Nisopropyl acrylamideb4vinyl pyridine) (PNIPAm106bP4VP102) selfassembled into coreshell complex micelles, followed by silicification of the shell with the addition of the silica precursor tetramethoxysilane (TMOS) under mild condition. Then, the effects of addition of crosslinker and different pH values on the structure and morphology of LMHSN were discussed. Finally, we studied the ability of the adsorption of macromeolecular by the LMHSN.