Photochemical Synthesis and Characterization of P(DMAA-co-MMA)/Nano-SiO2 Complex Hydrogels

doi:10.7517/j.issn.1674-0475.2007.06.436

Imaging Science and Photochemistry ›› 2007, Vol. 25 ›› Issue (6): 436-444.DOI: 10.7517/j.issn.1674-0475.2007.06.436

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Photochemical Synthesis and Characterization of P(DMAA-co-MMA)/Nano-SiO₂ Complex Hydrogels

LIU Xiao-xuan^1,2, WANG Hong-bo², BAI Ying-kun², WU Guang-guo²

1. Department of Polymeric Materials and Engineering, College of Material and Energy, Guangdong University of Technology, Guangzhou 510006, Guangdong, P. R. China;
2. Department of Chemistry, College of Science, Shantou University, Shantou 515063, Guangdong, P. R. China

Received:2007-01-11 Revised:2007-06-10 Online:2007-11-23 Published:2007-11-23

Abstract

Abstract: Poly (N,N′-dimethylacrylamide) and P (DMAA-co-MMA) copolymer hydrogels have been prepared by the photochemical synthesis,the process of photo-polymerization was completed within 3 minutes.P (DMAA-MMA)/nano-SiO₂ complex hydrogels were prepared by the radical graft copolymerization of N,N′-dimethylacrylamide and a bit of MMA onto the surface of nano-SiO₂ particles whose surface were modified.Irgacure 2959 was used as photo-initiator and N,N′-methylene bisacrylamide (Bis) was used as the cross-linking agent.The products were characterized by FT-IR and SEM.Swelling dynamics,water release behavior,ionic strength sensitive and pH-sensitive performances of the hydrogels were discussed.

Key words: poly (N,N′-dimethylacrylamide), temperature-sensitive hydrogels, nano-SiO₂, pH-sensitive

CLC Number:

LIU Xiao-xuan, WANG Hong-bo, BAI Ying-kun, WU Guang-guo. Photochemical Synthesis and Characterization of P(DMAA-co-MMA)/Nano-SiO₂ Complex Hydrogels[J]. Imaging Science and Photochemistry, 2007, 25(6): 436-444.

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Photochemical Synthesis and Characterization of P(DMAA-co-MMA)/Nano-SiO₂ Complex Hydrogels

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