80电影天堂网,少妇高潮一区二区三区99,jαpαnesehd熟女熟妇伦,无码人妻精品一区二区蜜桃网站

搜索:  
A Facile Way to Fabricate Hybrid Microparticles with Tunable Structures  
A Facile Way to Fabricate Hybrid Microparticles with Tunable Structures
資料類(lèi)型: PDF文件
關(guān)鍵詞: Precipitant  approach  Self-assembly  Morphology  Amphiphiles  
資料大?。?/td> 99K
所屬學(xué)科: 分子表征
來(lái)源: 第六屆亞歐研討會(huì)上處理和性能增強(qiáng)聚合物會(huì)議文集(2013.6.2-6 武漢)
簡(jiǎn)介:
Itiswellknownthat[6,6]-phenylC61butyricacidmethylester(PCBM)isthemostcommonn-typesemiconductormaterialusedinpolymersolarcells,andalmostonlyneedle-likecrystallitewithlengthsoftensofmicrometerscanbeformed.Meanwhile,muchworkaboutthepreparationoforderedstructureswithvariedmorphologieshasbeenreportedbytakingadvantageoftheself-assemblyofamphiphilicmolecules.Wewillintroducetheself-assemblyofamphiphilicmoleculesPCBM-PEGsynthesizedbyattachingethyleneglycol(EG)moleculestoPCBM.Duetoamphiphilicnatureofthispolymer,PCBM-PEGcanself-assembleintovariousmorphologiesinselectivesolvent.Wewillpresentasimpleandefficientroutetoproduceuniqueassembliesthroughtheprecipitationmethod.Inatypicalexperiment,PCBM-PEGwasfirstlydissolvedinagoodsolvent,forexampleN,N-Dimethylformamide(DMF);acertainamountofacetonitrile(apoorsolventforPCBM)wasthendroppedintothesolutionwithstingingstirringtoinducetheself-assemblyofthepolymer.Afteragingforseveraldays,uniqueassembliescanbeobtainedbydroppingadropofthesolutiononasiliconwaferundervarioussolventevaporationconditions.Byvaryingtheratioofgoodsolventtotheselectivesolventandthesolventevaporationrate,uniqueaggregateswithvariedmorphologies(e.g.,sphere,doughnut-like,bowl-likeandslice-likestructures)andsizesrangingfrommicronstonanometerscanbeformed.
作者: J. Y. Li, R. J. Liang,J. T. Zhu
上傳時(shí)間: 2013-07-04 14:11:30
下載次數(shù): 1
消耗積分: 2  
立即下載:
1人
1人
1人
友情提示:下載后對(duì)該資源進(jìn)行評(píng)論,即可獎(jiǎng)勵(lì)2分。
報(bào)告錯(cuò)誤:  1.下載無(wú)效  2. 資料明顯無(wú)價(jià)值  3. 資料重復(fù)存在

相關(guān)評(píng)論 共有0人發(fā)表評(píng)論 更多評(píng)論
你還沒(méi)有登錄,無(wú)法發(fā)表評(píng)論,請(qǐng)首先 登錄 注冊(cè)
免責(zé)聲明:本站部分資源由網(wǎng)友推薦,來(lái)自互聯(lián)網(wǎng),版權(quán)屬于原版權(quán)人,如果不慎侵犯到您的權(quán)利,敬請(qǐng)告知,我們會(huì)在第一時(shí)間撤除。本站中各網(wǎng)友的評(píng)論只代表其個(gè)人觀(guān)點(diǎn),不代表本站同意其觀(guān)點(diǎn)。