Formation of Chiral Mesopores in Conducting Polymers by Chiral-Lipid-Ribbon Templating and "Seeding" Route
Formation of Chiral Mesopores in Conducting Polymers by Chiral-Lipid-Ribbon Templating and "Seeding" Route
复制标题
通过手性脂质带模板和“播种”路线在导电聚合物中形成手性介孔
DOI：
10.1002/adfm.200701456
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发表时间：
2008-09-23
影响因子：
19
通讯作者：
Che, Shunai
中科院分区：
文献类型：
--
作者：
Fan, Chaxing;Qiu, Huibin;Che, Shunai
采用手性脂带模板和种子法制备了尺寸、形状和手性均可控的手性介孔导电聚合物纳米纤维。用极少量的手性两亲分子(通常为~lt；3%)合成的手性介孔导电聚(吡咯)(CMPP)具有螺旋扭曲的孔道，在扭曲纤维的中心轴上具有可控的5-20 nm的孔径。用高分辨电子显微镜(HRTEM)、扫描电子显微镜(SEM)和电子断层扫描对螺旋介孔的结构和手性进行了表征。手性中孔的平均孔径由N-2吸附-脱附数据近似估算，并通过螺旋带到矩形直带的转换计算得到。CMPP的孔径已经被控制--通过选择不同的手性脂分子的烷基链长或精确地调节H2O/Etoh体积比。
Conducting polymer nanofibers with controllable chiral mesopores in the size, the shape, and handedness have been synthesized by chiral lipid ribbon templating and "seeding" route. Chiral mesoporous conducting poly(pyrrole) (CMPP) synthesized with very small amount of chiral amphiphilic molecules (usually < 3%) has helically twisted channels with well-defined controllable pore size of 5-20 nm in central axis of the twisted fibers. The structure and chirality of helical mesopores have been characterized by high-resolution transmission electron microscope (HRTEM), scanning electron microscope (SEM) and electron tomography. The average pore diameters of chiral mesopores were approximately estimated from the N-2 adsorption-desorption data and calculated by the conversion calculation from helical ribbons to a rectangular straight tape. The pore size of CMPP has been controlled-by choosing different alkyl chain lengths of chiral lipid molecules or precisely adjusting the H2O/EtOH volume ratio.