简介：Thekineticsofsuspendedemulsionpolymerizationofmethylmethacrylate(MMA),inwhichwateractedasthedispersedphaseandthemixtureofMMAandcyclohexaneasthecontinuousphase,wasinvestigated.Itshowedthattheinitialpolymerizationrate(Rp0)andsteady-statepolymerizationrate(Rp)wereproportionaltothemassratiobetweenwaterandoilphase,andincreasedasthepolymerizationtemperature,thepotassiumpersulphateconcentration([I])andtheTween20emulsifierconcentration([S])increased.Therelationshipsbetweenthepolymerizationrateand[I]and[S]wereobtainedasfollows:Rp0∝[I]0.73[S]0.32andRp∝[I]0.71[S]0.23.TheaboveexponentswereclosetothoseobtainedfromnormalMMAemulsionpolymerization.Italsoshowedthattheaveragemolecularweightoftheresultingpoly(methylmethacrylate)decreasedasthepolymerizationtemperature,[I]and[S]increased.Thus,MMAsuspendedemulsionpolymerizationcouldbeconsideredasacombinationofmanyminiatureemulsionpolymerizationsproceedinginwaterdropsandobeyedtheclassicalkineticsofMMAemulsionpolymerization.

简介：为阐明β榄香烯的抗血小板作用，本文分别采用比浊法和放免法测定大鼠连续ｉｐ７ｄβ榄香烯乳６．２５～１２．５ｍｇ·ｋｇ－１·ｄ－１后对血小板聚集、血浆ｋｅｔｏＰＧＦ１α和ＴＸＢ２水平的影响。结果表明，本品分别使凝血酶、花生四烯酸和ＡＤＰ诱导血小板最大聚集率下降３８．３％～４２．６％，１４．７％～１９．１％和７．２％～１０．８％，血浆ＴＸＢ２从８８ｎｇ·Ｌ－１下降至７２ｎｇ·Ｌ－１，ｋｅｔｏＰＧＦ１α从１７．５ｎｇ·Ｌ－１增加至２０．９ｎｇ·Ｌ－１。提示ＴＸＢ２降低和ｋｅｔｏＰＧＦ１α值增加是其抑制血小板聚集的作用机制之一。

简介：Multi-scalestructuresinvolvedinemulsionandmicrospherecomplexsystemsarepresentedanddiscussed.Thestabilityandspatio-temporalstructuresofemulsions,aswellasnano-structuresformedonthesurfaceofmicrospheresafterpolymerization,areaffectedbythemolecularemulsifier/stabilizerstructuresandtheadsorbedemulsifier/stabilizernano-structuresontheoil/waterinterface.Thebroadsizedistributionandvariationofsurfacefeaturesofdropletsareresponsibleforvariationsoftheadsorbedemulsifier/stabilizerstructuresandthestabilityoftheemulsions.Ontheotherhand,preparationofauniformlysizedemulsionandemploymentofacombinedemulsifier/stabilizersystemcanpreservethestabilityoftheemulsionsandmicrospheres.Theabovephenomenashouldbemodeledbyamultiscalemethod,inordertomaintainthestabilityofindividualemulsionsystemsandrealizethedesirednano-structuresofmicrospheresbychoosingadequateemulsifier/stabilizerandexperimentalparameters.

简介：Asiliconeacrylatemicro-emulsionofmultipolymerwaspreparedbyseedemulsionpolymerization.Theeffectsofpolymerizationprocess,emulsifierrateandamount,initiatorrateandamount,polymerizationtemperature,functionalmonomers,titrationtimeonperformancesofemulsionhavebeendiscussedindetail.

简介：一个容易的方法被介绍制作monodisperse磁性的macroporous聚合物祷告(MMPB)。Waterin-油高度内部阶段乳剂(抱起对方的大腿把他摔倒)被使乳化准备在包含单体的一个油阶段的水的铁离子答案。抱起对方的大腿把他摔倒被介绍进一台简单microfluidic设备制作monodisperse(water-in-oil)-in-water两倍乳剂微滴。微滴用作microreactors综合Fe<潜水艇class=“a-plus-plus”>3O<潜水艇class=“a-plus-plus”>4nanoparticles并且是联机polymerized形成MMPB。准备MMPB显示制服尺寸，互连的多孔的结构，superparamagnetic行为和Fe的一致分发<潜水艇class=“a-plus-plus”>3O<潜水艇class=“a-plus-plus”>在聚合物矩阵的4。MMPB被扫描电子显微镜学(SEM)描绘，Fourier变换红外线的光谱学(FTIR)，X光检查衍射(XRD)，传播电子显微镜学(TEM)，颤动的样品magnetometry(VSM)。我们相信这个方法是在准备macroporousnanocomposite祷告的一种通用技术。

简介：Inthisarticle,AHPS(3-allyloxy-2-hydroxy-1-propanesulfonatesalt)wassynthesizedtouseinemulsifier-freeemulsionpolymerizationofBA/BMA/MMAsystemforhighsolidcontentlatexes.Storagestability,flowbehaviorofthelatexes,morphologyoftheobtainedlatexparticles,dynamicviscoelasticbehavior,tensilestrengthandwaterresistancepropertiesoftheresultedcopolymerswereinvestigated.TheexperimentalresultsshowthatwiththeadditionofAHPS,stabilityoftheemulsionisgreatlyimprovedthatthereappearsnoapparentprecipitationduringthepolymerizationandstorageatroomtemperaturefor6monthsandat-10℃forfourmonths.FlowofthelatexesfollowstheBinghambodylaws,diameterofthelatexparticlesisabout0.6μm,ofwhichislargerthanthatofbyconventionalemulsionpolymerization(0.12μm).Inaddition,notonlywaterresistanceofthecopolymersobtainedbyemulsifier-freeemulstionpolymerizationisgreatlyimproved,butalsotensilestrengthisobviouslyenhanced.

简介：

简介：Polyacrylamide/silica（PAM/SiO2）compositecapsulesweresynthesizedbyinversePickeringemulsionpolymerization.Silicananoparticlesmodifiedwithmethacryloxypropyltrimethoxysilane（MPS）wereusedasastabilizer.Transmissionelectronmicroscopy（TEM）,scanningelectronmicroscopy（SEM）,Fouriertransforminfrared（FT1R）spectroscopy,andthermalgravimetricanalysis（TGA）wereusedtocharacterizethemorphologyandcompositionofthecompositecapsules.SEMandTEMimagesshowedthatcapsulesconsistedofaparticleshellandapolymerinnerlayer.Thecapsulesizedependsonthenanoparticleconcentrationinthecontinuousphase.Thecompositerigiditylargelydependsontheacrylamideconcentration.FTIRandTGAresultsindicatedtheexistenceofpolyacrylamideandSiO2inthecompositeparticles.AqueousHg（Ⅱ）removaltestingbythePAM/SiO2compositecapsulesindicatedpromisingpotentialforremovingheavymetalionsfromwastewater.

简介：高效水泥基于合成材料被增加环氧基树脂准备乳剂。环氧基树脂乳剂与环氧基树脂被综合在实验室的磷的酸酉旨和poly乙二醇。这环氧基树脂乳剂优于另外的乳剂，例如稍微使脱水了，并且，很好拍摄形成能力。环氧基树脂乳剂的机械性质堕落抵抗和结构修改了水泥臼被学习。试验性的结果证明修改水泥臼的机械性质稍微与增加环氧基树脂乳剂内容被增加，特别弯曲力量。所有修改的臼的堕落抵抗比未修改的臼好。聚合物电影形成在矩阵和总数区域之间的桥阶段，并且在水泥水和系统形成三尺寸的结构，它改进修改的臼的机械性质。

简介：Thispaperintroducesworkingprincipleandtechnicalfeaturesofvacuumfilterinemulsionsystemfortandemcoldstripmill.Basedonspecificcases,thispaperanalysesandassessestheeffectbeforeandafterusingtheemulsionsystemwiththeusageofthevacuumfilterforstripmill.Comparewiththeeffectwhenusingthefirstgenerationvacuumfilter,theemulsionqualityisimprovedsignificantlybyusingthesecondgenerationvacuumfilter,whichatthesametimeensuressteadyoperationoftherollingmillandsurfacequalityofthemillproducts.Asaresult,investmentandrunningcostsarelowered,emissionsofthewasteemulsionarereduced,wastewatertreatmentcostsarereducedandsoastheenvironmentalpollution.Itcanbeseenthesecondgenerationvacuumfilterhasobviouseconomicandenvironmentalbenefits.Therefor,itsuggeststhatthefiltershouldbeusedwidelyinthefieldofautomotive,environmentalprotectionrollingsteelandnonferrousmetals.

简介：Thecoolingandlubricationprocessisoneofthekeyprocessesincoldrolling,asitnotonlydeterminessurfacequalityandstripshape,butalsoreducestherollingpowerconsumptionandextendsthelifeoftherollevenduringhigh-speedoperation.Inthisstudy,aninnovativemethodcombiningemulsionlubricationandneatoillubricationwasusedtosolvesomeproblemsassociatedwithindividualpasses.Laboratorytestsonstainlesssteelstripsshowedthatthisnewlubricationmethodcouldimprovethesurfacequalityofthestrip,controltherollingfrictioninthedeformationzone,andhasthepotentialofmakinglubricationsystemssimplerandeasiertooperate,allwhilereducingthenegativeenvironmentalimpactfromemulsionprocessing.

简介：有60稳固的内容的硅酮油乳剂被准备，甲基硅酮油借助于对硅酮油乳剂的微滴直径的乳化条件的emulsifier-in-oilmethod.The影响用作主要材料，包括emulsifier的数量是试验性的结果显示出的discussed.The乳化方法，乳化，使乳化的水剂量，和激动人心的速度的时间和温度，微滴size.Theoptim上的有的重要影响

简介：Objective:Tostudytheanti-inflammatoryactivityandtissuedistributionpatternsofintravenousemulsionofdexamethasoneacetateinmice.Methods:Theanti-inflammatorysolutionforinjectionandLimethasone(Jepaneseproduct)givenintravenouslywereevaluatedbyusingthepreformedcarrageenangranulomapouchmethodinrats.Results:Theanti-inflammatoryactivityofdexamethasoneacetateemulsionatlowdoseof0.05mg.kg1wasaspotentasdexamethasonesodiumphosphatesolutionathighdoseof0.3mg.kg1.Thedistributionpatternsinmicetissuesof[^3H]dexamethasoneacetateemulsionand[^3H]dexamethasonesodiumphosphatesolutioninmiceweremarkedlydifferent.Dexamethasoneacetateemulsionshowedamuchhigherconcentrationintheliver,spleen,lung,andinflamedtissues,whereasdexamethasonesodiumphosphatehadahighconcenti,moninthemusclesofvastuslateralis.Theseresultsmayindicatethatdexamethasoneincoporatedinlipidemulsionwastakenupbythereticuloendothelialsystemandinflammatorycellsmuchmorethandexamethasonesodiumphosphatesolution.Conclusion:Whendexamethasoneacetatewasincorporatedinemulsion,thedistributionpatternsintissueswerechangedandtheyhadastrongeranti-inflammatoryactivity.

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简介：Polymernanoparticleswerepreparedinthemethylmethacrylate(MMA)/butylmethacrylate(BA)emulsioncopolymerizationprocessbyamodifiedmicroemulsioncopolymerizationmethod.2-Hydroxyethylmethacrylate(HEMA),acrylate(AA)andmethylacrylate(MAA)wereusedasreactivecosurfactants.Withthisprocesshighpolymer:surfactantweightratios(40:1orgreater),relativelyconcentrated(～30wt.%)latexesandsmall(～60nm)particlediameterswereobtained.PropertiesofthelatexeswerecharacterizedbyTEM,DSC,dynamiclightscattering,andIRspectroscopy.

简介：Topreventexpandedpolystyrene(EPS)beadsfromrisinguptothesurfaceinthemoldingprocessofEPSlightweightconcrete,vibrationwithpressurewasappliedandthepolyvinylacetate(PVA)emulsionwasadoptedtoimproveitsmechanicalproperties.Themechanicalproperties,thermalpropertiesanddurabilityofEPSlightweightconcreteweretested.ThemicrostructuresofEPSlightweightconcretewereobservedbyscanningelectronmicroscope(SEM).Vibrationwithpressurereducesthenumberofsmallcracks.The180dcompressivestrengthandflexuralstrengthincreaseobviouslyasalargeamountofPVAwasadded.ThemixedamountofPVAhasnoobviousinfluenceonthethermalperformancewhenitisnotmorethan10%ofthecement.VibrationwithpressureandsurfacemodificationofEPSbeadsbyPVAimprovethecombinationofEPSbeadswithcementstoneandthemechanicalpropertiesofEPSlightweightconcrete.

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简介：Poly(styrene-glycidylmethacrylate)particleshavingbowl-shapedhollowstructuresweresynthesizedbyswollenseedemulsionpolymerization.ThePSemulsionsynthesizedthroughsoap-freeemulsionpolymerizationwasswollenbytoluene,andthenthemixtureofsecondmonomerswasaddedunderpolymerizationcondition.Soathinshellofpoly(styrene-glycidylmethacrylate)cross-linkedbytriethyleneglycoldiacrylatewasformedaroundtheswollenPSparticle.Thebowl-shapedparticleswereobtainedafterthecollapsingofthethinshellwhenthetolueneemanatedfromtheparticles,buttheshapeswereeffectedbythedegreesofcross-linking.TheshapeoftheparticleswasobservedbySEM.ThereleasebehaviorofsolventfromtheparticleswasexaminedbyTG.

简介：Thesemibatchemulsifier-freeemulsioncopolymerizationofmethylmethacrylate(MMA)andbutylacrylate(BA)inthepresenceof2-hydroxyethylmethacrylate(HEMA)initiatedbyK2S2O8(PSP)wasstudied.Thelatexparticlescanmaintainanappreciablestabilityduringtheemulsifier-freeemulsioncopolymerizationofMMAandBAinthepresenceofHEMA.Theaverageparticlediameterincreasewithanincreaseoftotalsolidscontent,HEMAcontent,PSPcontent,ionicstrengthofthesystemandmonomerfeedrate,anddecreasewiththemonomerfeedrationfrom3/1(MMA/BA:molarration).to1/3.ThestabilityofthisreactionsystemisimprovedbyaddingHEMAasnonioniccomonomer,Highsolidscontent(50%)latexwithmonodisperseparticlecanbeobtainedusingthisprocess.

简介：Thepropertiesoftherelativisticheliumfragmentsproducedininteractionsof84Krat1.8AGeVand197Auat10.7AGeVinemulsionareinvestigated.Theexperimentalresultsarecomparedwiththoseobtainedfromvariousprojectileswithemulsioncollisionsatdifferentenergies.Itisfoundthatthemultiplicitydistributionofheliumprojectilefragments(HPFs)iswelldescribedbytheKoba-Nielsen-Olesen(KNO)scalingpresentation.ThesecondMuellermomentf2oftheHPFmultiplicitydistributionisindependentoftheprojectileenergyforthesameprojectile,butitisdependentontheprojectilemassnumber.Thevalueoff2increaseswiththeincreaseofprojectilemassnumberAp.Thenegativevalueoff2,whenAp<69,meansthattheemissionofHPFsisanticorrelated,butpositivevalueoff2,whenAp>69,referstothattheemissionofHPFsiscorrelated.Thenon-zerof2momentinthisexperimentimpliesthestrongcorrelationexistingbetweentheHPFs.