Chiral Transfer of Linear Polysiloxane with Preferred-Handed Helical Conformation

IF 5.1 Q1 POLYMER SCIENCE ACS Macro Letters Pub Date : 2024-04-17 DOI:10.1021/acsmacrolett.4c00122

Tomoki Mure, Yakumo Kinoshita, Hinari Sakai, Shunsuke Morii, Hsin-Ni Wu, Tsz-Ming Yung, Hao-Cheng Yu, Kodai Nagashima, Wataru Higashiguchi, Noboru Ohta, Teruaki Hayakawa, Yoshinobu Nakamura, Syuji Fujii, Ming-Chia Li* and Tomoyasu Hirai*,

引用次数: 0

Abstract

We report the preparation of chiral silica using a linear polysiloxane main chain with a preferred-handed helical structure as the template. Poly(methylvinyl siloxane) (PMVS) with a cysteine derivative side chain designated as PMVS-Cys was prepared using anionic polymerization and an ene-thiol reaction. PMVS-Cys forms a helical conformation in both solution and film via hydrogen bonding between amide groups at side chains. The helical structure remains during the calcination process, resulting in silica with helical structure. The silica with a helical structure shows optical activity.

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具有优选螺旋构象的线性聚硅氧烷的手性转移

我们报告了以具有优选螺旋结构的线性聚硅氧烷主链为模板制备手性二氧化硅的情况。我们利用阴离子聚合和烯硫醇反应制备了具有半胱氨酸衍生物侧链的聚甲基乙烯基硅氧烷（PMVS），并将其命名为 PMVS-Cys。PMVS-Cys 通过侧链上酰胺基团之间的氢键作用，在溶液和薄膜中都形成了螺旋构象。螺旋结构在煅烧过程中保持不变，从而形成了具有螺旋结构的二氧化硅。具有螺旋结构的二氧化硅具有光学活性。

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来源期刊

ACS Macro Letters 化学-

CiteScore

10.40

自引率

3.40%

发文量

209

审稿时长

1 months

期刊介绍： ACS Macro Letters publishes research in all areas of contemporary soft matter science in which macromolecules play a key role, including nanotechnology, self-assembly, supramolecular chemistry, biomaterials, energy generation and storage, and renewable/sustainable materials. Submissions to ACS Macro Letters should justify clearly the rapid disclosure of the key elements of the study. The scope of the journal includes high-impact research of broad interest in all areas of polymer science and engineering, including cross-disciplinary research that interfaces with polymer science. With the launch of ACS Macro Letters, all Communications that were formerly published in Macromolecules and Biomacromolecules will be published as Letters in ACS Macro Letters.