Simultaneous Adjustment of Size and Helical Sense of Chiral Nanospheres and Nanotubes Derived from an Axially Racemic Poly(phenylacetylene)

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• 作者：Sandra Arias ; Manuel Nú ; &ntilde ; ez-Martí ; nez ; Emilio Qui&ntilde ; oá ; Ricardo Riguera and Fé ; lix Freire
• 刊名：Small
• 出版年：2017
• 出版时间：January 11, 2017
• 年：2017
• 卷：13
• 期：2
• 全文大小：2619K
• ISSN：1613-6829

文摘

Nanospheres and nanotubes with full control of their size and helical sense are obtained in chloroform from the axially racemic chiral poly(phenylacetylene) poly-(R)-1 using either Ag⁺ as both chiral inducer and cross-linking agent or Na⁺ as chiral inducer and Ag⁺ as cross-linking agent. The size is tuned by the polymer/ion ratio while the helical sense is modulated by the polymer/cosolvent (i.e., MeCN) ratio. In this way, the helicity and the size of the nanoparticles can be easily interconverted by very simple experimental changes.