从泡沫量与结构、结膏温度、质地以及稳定性等方面,研究了4种不同乳化剂对以椰油酰甘氨酸钠为主的结晶型洁面膏的影响。结果表明,聚甘油类乳化剂Hostacerin®DGSB使配方结膏温度降低,同时配方具有更高的硬度、浓稠度以及黏性,显著...从泡沫量与结构、结膏温度、质地以及稳定性等方面,研究了4种不同乳化剂对以椰油酰甘氨酸钠为主的结晶型洁面膏的影响。结果表明,聚甘油类乳化剂Hostacerin®DGSB使配方结膏温度降低,同时配方具有更高的硬度、浓稠度以及黏性,显著提高配方的稳定性;磷酸酯类乳化剂Hostaphat®KW340D能提高洁面膏的泡沫稳定性,明显提高配方的结膏温度以及与珠光剂的相容性,也能明显提高硬度、浓稠度、黏性以及配方的稳定性。液晶型乳化剂Plantasens®Emulsifier HP 30能显著提高泡沫的细密程度与稳定性,硬度提高的同时也有比较好的铺展性;而聚醚类乳化剂Eumulgin®S21与体系的兼容性差,导致泡沫量明显减少,泡沫的稳定性也最差,虽然能提高结膏温度,但加速洁面膏的失稳过程,因此不适用于该体系。展开更多
We analyzed the excited-state structures and emission spectra of firefly emitter, the anionic keto form of firefly oxyluciferin（keto-l）, determined by the time dependent-density functional theory（TD-DFT） approach....We analyzed the excited-state structures and emission spectra of firefly emitter, the anionic keto form of firefly oxyluciferin（keto-l）, determined by the time dependent-density functional theory（TD-DFT） approach. The analysis is based on a direct comparison with the highly correlated CASSCF（MS-CASPT2） ab initio approach. 49 DFT functionals were considered and applied to the study. Among the tested functionals, mPW3PBE, B3PW91 and B3P86 give the best performance for ground-state geometry, absorption spectrum, excited-state geometry and emis- sion spectrum.展开更多
文摘从泡沫量与结构、结膏温度、质地以及稳定性等方面,研究了4种不同乳化剂对以椰油酰甘氨酸钠为主的结晶型洁面膏的影响。结果表明,聚甘油类乳化剂Hostacerin®DGSB使配方结膏温度降低,同时配方具有更高的硬度、浓稠度以及黏性,显著提高配方的稳定性;磷酸酯类乳化剂Hostaphat®KW340D能提高洁面膏的泡沫稳定性,明显提高配方的结膏温度以及与珠光剂的相容性,也能明显提高硬度、浓稠度、黏性以及配方的稳定性。液晶型乳化剂Plantasens®Emulsifier HP 30能显著提高泡沫的细密程度与稳定性,硬度提高的同时也有比较好的铺展性;而聚醚类乳化剂Eumulgin®S21与体系的兼容性差,导致泡沫量明显减少,泡沫的稳定性也最差,虽然能提高结膏温度,但加速洁面膏的失稳过程,因此不适用于该体系。
基金Supported by the National Natural Science Foundation of China（Nos.21173099, 20973078, 51164017）, the Applied Basic Research Plans Program of Yunnan Province, China（No.2011FZ040）, the Scientific Research Fund of Yunnan Provincial Educa- tion Department, China（No.2012Y545）, the Training Foundation for Talents of Kunming University of Science and Technolo- gy（No.KKSY201232040） and the Foundation of State Key Laboratory of Theoretical and Computational Chemistry, China.
文摘We analyzed the excited-state structures and emission spectra of firefly emitter, the anionic keto form of firefly oxyluciferin（keto-l）, determined by the time dependent-density functional theory（TD-DFT） approach. The analysis is based on a direct comparison with the highly correlated CASSCF（MS-CASPT2） ab initio approach. 49 DFT functionals were considered and applied to the study. Among the tested functionals, mPW3PBE, B3PW91 and B3P86 give the best performance for ground-state geometry, absorption spectrum, excited-state geometry and emis- sion spectrum.
