پديدآورندگان :
Roghani-Mamaqani Hossein r.mamaghani@sut.ac.ir Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran, Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran , Mardani Hanieh Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996,Tabriz, Iran , Shahi Sina Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996,Tabriz, Iran , Talebi Saeid Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran, Institute of Polymeric Materials, Sahand University of Technology,P.O. Box 51335-1996, Tabriz, Iran , Salami-Kalajahi Mehdi Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996,Tabriz, Iran, Institute of Polymeric Materials, Sahand University of Technology,P.O. Box 51335-1996, Tabriz, Iran , Heidari Fateme Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996,Tabriz, Iran
كليدواژه :
Acidichromism , N , N , dihydroxyethyl azobenzene , Emulsifire free emulsion polymerization
چكيده فارسي :
N,N-dihydroxyethyl azobenzene can be used as a very desirable dyeد even in acidic environments. Ultraviolet-visible absorbance peak of N,N-dihydroxyethyl azobenzene showed that λmax of absorbance peak shifts from 435 to 535 nm alongside with decrease of pH from 6 to 1, which is accompanied by a distinct color change from yellow to salmon pink. This phenomenon is due to the conversion of the structure to hydrazone one. On the other hand, methyl methacrylate latex nanparticles were synthesized by emulsifier-free emulsiom polymerization. By doping the dye in MMA latex nanoparticles, the acidichromism behavior was seen more intensely.
