Effect of Gas Antisolvent on Conformation of Polystyrene in Tolene：Viscosity and Small—Angle X

摘要 Synchrotronradiationsmall-angleX-rayscattering(SAXS)andtheviscositytechniquewereusedtoinvestigatetheeffectofdissolvedCO2intolueneontheconformationofpolystyrene(PS)inthesolution.TheviscosityofPSsolutiondecreasesfasterwithincreasingantisolventCO2pressurethanthatofthesolventintheabsenceofthepolymer.theintrinsicviscosity[η]calculatedusingthewellknownHugginsequationdecreaseswithantisolventpressure.ItwasfoundthatthesecondvirialcoefficientA2andtheapparentmean-squareradiusofgyration^1/2decreaseswithpressureofantisolventCO2.AllthesephenomenacanbeattributedtotheshrinkofPSchaininthecourseofaddingthegasantisolventbecausetheintercationbetweenthepolymerandsolventbecomesweaker.Thevalues^1/2atdifferentpressuresobtainedfromSAXSdataagreereasonablywiththosecalculatedfromFlorytheoryusingtheviscositydatadeterminedinthiswork.ThisimpliesthatFlorytheory,whichhasbeenusedwidelyforthesolutionsofpolymersinliquidsolvents,isalsoapplicabletothepolymersolutionwithgasantisolvent.

1DanLi;JunWang;等. Effect of Gas Anti—solvent on Conformation of Polystyrene in Toluene：Viscosity and Small angle X—ray scattering Study.物理,2001-01.
2DanLi QingHUO 等. Small Angle X—ray Scattering Study of PS Conformation in Tetrahydrofuran Solvent with Gas Anti—solvent.核技术及应用,2000-01.
3DanLi BuxingHan 等. Small—Angle X—ray Scattering Study on the Conformation of Polystyrene in Compressed CO2—Tetrahydrofuran Mixtures.核技术及应用,2000-01.
4李志宏;巩雁军;张晔;吴东;孙予罕;王俊;柳义;董宝中. STUDY OF MESOPOROUS SILICA MATERIALS BY SMALL ANGLE X—RAY SCATTERING.物理,2001-02.
5D. Lammie;M. M. Bain;1, S. E. Solomon;T. J. Wess. Scanning Microfocus Small Angle X-ray Scattering Study of the Avian Eggshell.生物工程,2006-01.
6DanLi;JunWang;等. Small angle X—ray Scattering by Dilute Solution of Bisphenol A Polycabonate during Adding Anti—solvent CO2.物理,2001-01.
7Zhang Jianbo;Zhang Yongan;Zhu Baohong;Liu Ruiqing;Li Zhihui;Li Xiwu. Small-angle X-ray scattering investigation of aging behavior of Al-Cu-Mg-Ag alloys using synchrotron radiation.金属材料,2012-06.
8ClementinaGHEORGHIU AlinTIRZIU. THE STUDY OF MISCIBILITY PROCESSES OF BINARY POLYMER MIXTURES ON ACRYLONITRILE BASIS BY X—RAY SCATTERING.核技术及应用,1998-01.
9都鲁超;翁羽翔;洪新国;冼鼎昌;Kobayashi Katsumi. Synchrotron Small-Angle X-Ray Scattering Investigation on Integral Membrane Protein Light-Harvesting Complex LH2 from Photosynthetic Bacterium Rhodopseudomonas Acidophila.物理,2006-07.
10Mohammad Yaghoub Abdollahzadeh Jamalabadi;Mohammadreza Daqiq Shirazi;Ali Kosar;Mostafa Safdari Shadloo. Effect of injection angle,density ratio,and viscosity on droplet formation in a microfluidic T-junction.力学,2017-04.

Effect of Gas Antisolvent on Conformation of Polystyrene in Tolene：Viscosity and Small—Angle X—ray Scattering Study

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Effect of Gas Antisolvent on Conformation of Polystyrene in Tolene：Viscosity and Small—Angle X—ray Scattering Study

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