Preparation and characterization of a novel PEGDMA-co-HEMA/LDHs hybrid hydrogels
(0) This work describes the fabrication,characterization,and properties of a novel hybrid poly(ethylene glycol) (PEG)-based hydrogels via in situ polymerization.The hybrid hydrogels were fabricated by free-radical redox polymerization using ammonium persulfate (APS),N,N,N,N-tetramethylethylenediamine (TEMED) as initiators and N,N-methylenebisacrylamide (BIS) as cross-linker at 60 ℃.To create a hybrid hydrogel,0.2 wt % of MgAl LDH was added to the aqueous solution by ultrasonic dispersion.The physicochemical properties of hybrid hydrogels under vacuum freeze-drying processing were characterized by FT IR,TGA,SEM,while swelling kinetics and gel content were calculated.These studies indicated swelling degree in distilled water was varied from 94-125% with a gel content of 83-91%.SEM images showed the micron pore size of hydrogels could be adjusted within the range of several micrometers by changing the cross-linker content from 2% o m 2%-s showedd with roved the phsical to 10%.The results showed that the hybrid hydrogels exhibited excellent physicochemical behavior and might be a promising material for applications in tissue engineering and drug delivery.
PEG-based hydrogel poly(ethylene glycol) dimethacrylate 2-hydroxyethyl methacrylate layered double hydroxide in situ polymerization
Wang Pei Wei Zhiyong Cheng Jiang Liu Lian
School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
国际会议
上海
英文
177-177
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）