Spectroscopic investigation on chirality transfer in additive-driven self-assembly of block polymers

Chiral supramolecules prepared by the additive-driven self-assembly of block copolymers provide a facile method to construct helical nanostructures. In this study, we investigated the chiral transfer from chiral tartaric acid to poly（styrene）-b-poly（ethylene oxide） using small-angle X-ray scattering...

Full description

Saved in:
Bibliographic Details
Published in:Chinese chemical letters 2017-07, Vol.28 (7), p.1358-1364
Main Authors: Pang, Li-Hua, Li, Jing-Min, Lu, Xue-Min, Lu, Qing-Hua
Format: Article
Language:English
Subjects:
Additive-driven
Block polymer
Chirality
Helical structure
Hydrogen bond
光谱
圆二色性
小角X射线散射
嵌段共聚物
手性
环氧乙烷
自组装
透射电子显微镜
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Chiral supramolecules prepared by the additive-driven self-assembly of block copolymers provide a facile method to construct helical nanostructures. In this study, we investigated the chiral transfer from chiral tartaric acid to poly（styrene）-b-poly（ethylene oxide） using small-angle X-ray scattering,transmission electron microscopy, circular dichroism, and vibrational circular dichroism. The results showed that the chirality was transferred to both the segments of block copolymer irrespective of the interaction with the chiral additives and formation of helical phase structure. However, the chirality transfer was carried out using different methods： for poly（ethylene oxide） segments, the chirality transfer was carried out via direct hydrogen bond formation; for polystyrene segments, the chirality transfer was carried out via the cooperative motion of block copolymers during the thermal annealing.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2017.04.009