搜索:  
Hierarchical Self-Assembly Structures of POSS-Containing Polypeptide Block Copolymers  
Hierarchical Self-Assembly Structures of POSS-Containing Polypeptide Block Copolymers
资料类型: PDF文件
关键词: POSS  Nanocomposites  Self-Assembly  Polypeptide  
资料大小: 72K
所属学科: 通用高分子材料
来源: 来源网络
简介:
Inthisstudy,weusedacombinationofatomtransferradicalpolymerization,ringopeningpolymerization,andclickchemistrytosynthesizeneworganic/inorganicmacromolecularself-assemblingbuildingblocksofpolystyrene-trpoly(y-propargyl-l-glutamate-g-polyhedraloligomericsilsesquioxane)[PS-/r(PPLG-g-POSS)].TheincorporationofthePSandPOSSunitsenhancedthea-helicalconformationinthesolidstate,asdeterminedusingFouriertransforminfrared(FTIR)spectroscopyandwide-angleX-raydiffraction(WAXD).Hierarchicalself-assemblyofthePS-/r(PPLG-g-POSS)diblockcopolymers,whichwecharacterizedusingWAXD,small-angleX-rayscattering,andtransmissionelectronmicroscopy,ledtotheformationofcylindricalstructuresasaresultofmicrophaseseparationofthediblockcopolymer;thehexagonalcylinderpackingnanostructurefeatureda-helicalconformationsofpolypeptidesegments,whichwereorientedperpendiculartothedirectionofthecylindercolumnfromdiblockcopolymers;aggregationofthePOSSmoietiesinducedthepackingintohexagonallatticestructures.TheattachmentofPOSSunitsontothesidechainsofPPLGstabilizedthea-helicalsecondarystructuresatelevatedtemperature,relativetothoseofpurePPLGandPS-trPPLG,asdeterminedthroughtemperature-dependentFTIRspectroscopicanalyses.
上传人: liu
上传时间: 2013-06-26 14:55:47
下载次数: 0
消耗积分: 2  
立即下载:
1人
1人
1人
友情提示:下载后对该资源进行评论,即可奖励2分。
报告错误:  1.下载无效  2. 资料明显无价值  3. 资料重复存在

相关评论 共有0人发表评论 更多评论
你还没有登录,无法发表评论,请首先 登录 注册
免责声明:本站部分资源由网友推荐,来自互联网,版权属于原版权人,如果不慎侵犯到您的权利,敬请告知,我们会在第一时间撤除。本站中各网友的评论只代表其个人观点,不代表本站同意其观点。