典型文献
Molecular diffusion in ternary poly(vinyl alcohol)solutions
文献摘要：
The diffusion kinetics of a molecular pro-be—rhodamine B—in ternary aqueous solutions contain-ing poly(vinyl alcohol),glycerol,and surfactants was investigated using fluorescence correlation spectroscopy and dynamic light scattering.We show that the diffusion characteristics of rhodamine B in such complex systems is determined by a synergistic effect of molecular crowding and intermolecular interactions between chemical species.The presence of glycerol has no noticeable impact on rhodamine B diffusion at low concentration,but signifi-cantly slows down the diffusion of rhodamine B above 3.9％(w/v)due to a dominating steric inhibition effect.Furthermore,introducing surfactants(cationic/nonionic/anionic)to the system results in a decreased diffusion coefficient of the molecular probe.In solutions containing nonionic surfactant,this can be explained by an increased crowding effect.For ternary poly(vinyl alcohol)solutions containing cationic or anionic surfactant,surfactant-polymer and surfactant-rhodamine B interactions along-side the crowding effect of the molecules slow down the overall diffusivity of rhodamine B.The results advance our insight of molecular migration in a broad range of industrial complex formulations that incorporate multiple compounds,and highlight the importance of selecting the appropriate additives and surfactants in formulated pro-ducts.
文献关键词：
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作者姓名：
Katarzyna Majerczak;Ophelie Squillace;Zhiwei Shi;Zhanping Zhang;Zhenyu J.Zhang
作者机构：
School of Chemical Engineering,University of Birmingham,Birmingham B15 2TT,UK;The Procter and Gamble Company,Cincinnati,OH 45040,USA
文献出处：
引用格式：
[1]Katarzyna Majerczak;Ophelie Squillace;Zhiwei Shi;Zhanping Zhang;Zhenyu J.Zhang-.Molecular diffusion in ternary poly(vinyl alcohol)solutions)[J].化学科学与工程前沿,2022(06):1003-1016
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B类：
Molecular,diffusion,ternary,vinyl,alcohol,solutions,kinetics,rhodamine,aqueous,glycerol,surfactants,was,investigated,using,fluorescence,correlation,spectroscopy,dynamic,scattering,We,show,that,characteristics,such,complex,systems,determined,by,synergistic,effect,crowding,intermolecular,interactions,between,chemical,species,presence,has,noticeable,impact,concentration,but,signifi,cantly,slows,down,above,due,dominating,steric,inhibition,Furthermore,introducing,cationic,nonionic,anionic,results,decreased,coefficient,probe,In,containing,this,explained,increased,For,polymer,along,side,molecules,overall,diffusivity,advance,our,insight,migration,broad,range,industrial,formulations,incorporate,multiple,compounds,highlight,importance,selecting,appropriate,additives,formulated,ducts
AB值：
0.526163
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