沈阳航空航天大学学报
瀋暘航空航天大學學報
침양항공항천대학학보
JOURNAL OF SHENYANG INSTITUTE OF AERONAUTICAL ENGINEERING
2014年
2期
91-94
,共4页
表面活性剂反胶团%超大孔共聚微球%两亲性共聚物%电导率
錶麵活性劑反膠糰%超大孔共聚微毬%兩親性共聚物%電導率
표면활성제반효단%초대공공취미구%량친성공취물%전도솔
reverse surfactantmicelle%super macroporous copolymer microspheres%amphiphilic copolymer
用表面活性剂反胶团法制备超大孔苯乙烯共聚物微球,两亲性聚(葡聚糖-GMA)二嵌段共聚物为表面活性剂。考察了油溶性表面活性剂Span80在反应体系中对聚合物微球孔结构的影响规律。结果表明,随着Span80质量分数增加,聚合体系稳定性增强,Span80质量分数20%以上时,乳液电导率曲线呈现缓增-骤升-缓增的趋势,从制备微球的SEM图片看出,Span80质量分数越高,微球孔径越大,40%时孔径最理想,但修饰上的亲水基含量低,微球疏水改性效果不明显,若要将其应用于生物大分子分离纯化,还需进行改进。
用錶麵活性劑反膠糰法製備超大孔苯乙烯共聚物微毬,兩親性聚(葡聚糖-GMA)二嵌段共聚物為錶麵活性劑。攷察瞭油溶性錶麵活性劑Span80在反應體繫中對聚閤物微毬孔結構的影響規律。結果錶明,隨著Span80質量分數增加,聚閤體繫穩定性增彊,Span80質量分數20%以上時,乳液電導率麯線呈現緩增-驟升-緩增的趨勢,從製備微毬的SEM圖片看齣,Span80質量分數越高,微毬孔徑越大,40%時孔徑最理想,但脩飾上的親水基含量低,微毬疏水改性效果不明顯,若要將其應用于生物大分子分離純化,還需進行改進。
용표면활성제반효단법제비초대공분을희공취물미구,량친성취(포취당-GMA)이감단공취물위표면활성제。고찰료유용성표면활성제Span80재반응체계중대취합물미구공결구적영향규률。결과표명,수착Span80질량분수증가,취합체계은정성증강,Span80질량분수20%이상시,유액전도솔곡선정현완증-취승-완증적추세,종제비미구적SEM도편간출,Span80질량분수월고,미구공경월대,40%시공경최이상,단수식상적친수기함량저,미구소수개성효과불명현,약요장기응용우생물대분자분리순화,환수진행개진。
Super macroporousstyrene copolymer microspheresis made up by the method of reverse surfac-tantmicellewith amphiphilic poly( dextran-GMA) copolymer as surfactant. The effects of the oil-soluble sur-factantSpan80 in the reaction system on the pore structure of the polymer microspheres are studied. The re-sult shows that,thestabilityof polymerization system is enhanced as Span80 content increases. When the mass fraction of Span80 is over 20%,the curve of emulsion conductivity shows the trend ofslow growth,upsurge, and then slow growth. According to SEM of microspheres,it is concluded that,themass fractionof Span80 gets higher,the aperture of microspheres becomes greater. When the mass fraction increases to 40%,the ap-erture is ideal. But the content of hydrophilic groups decreases,and the hydrophobic modification of micro-spheres is not obvious. In that situation,the microspheres should be improved for its application to the bio-logical macromolecules separation and purification.