The Effects of Multiple Textile Auxiliary on Reactive Dark Blue M-2GE Interaction with Silk Peptide by Fluorescence Spectroscopy
MA Mingming;YANG Jiabiao;SU Xinke
Related Articles |
It is important to study the interaction of small molecules with silk peptide. In this paper, the interaction of reactive dark blue M2GE(RDBMG) with silk peptide was studied by means of multiple spectroscopy. The binding distance and binding ratio were calculated as 304 nm and 1∶〖KG-*2〗1, respectively. Additionally, the effects of foreign substances in dyeing system such as surfactants, ionic liquids, metal ions, oxidants, textile pulp, and seven kinds of amino acids (histidine, L-aspartic acid, L-lysine, L-arginine, L-methylthio amino acid, L-leucine and L-proline) on SP RDBMG were also investigated. The results showed that the binding constants increased when Ionic liquids including chloride hydroxyethyl trimethyl amine, bromide 1-ethyl-2,3–dimethyl imidazolium, 1-ethyl-2,3-methyl imidazolium bis-［trifluoromethyl-sulfonyl］ imide, textile pulp (original starch, phosphate starch, oxidized starch), metal ions (Ca 2 +, Zn2 +, Ba2 +), surfactants(CTAB, Triton X-100, sodium dodecyl sulfate) and seven types of amino acids were added into SPRDBMG. However, the binding constants decreased when polypropylene aldehyde amine, aldehyde ester starch, Cu2 + and oxidants (φ=30%H2O2, K2S2O8, K2Cr2O7) were in the presence of SP-RDBMG.