title: From random coil polymers to helical structures induced by carbon nanotubes and supramolecular interactions.
abstract: A simple method is reported for the preparation of double-helical structures through a series of achiral random and block copolymers poly(styrene-co-4-vinylbenzyl triazolylmethyl methylthymine) (PS-co-PVBT) with various T units on the side chains through click reactions of poly(styrene-co-4-vinylbenzyl azide) (PS-co-PVBN(3)) with propargyl thymine (PT) and also the synthesis of the A-appended pyrene derivative (A-Py) through click chemistry. This double-helical structure is observed from achiral random-coil polystyrene (PS) main chains, stabilized through the combination of multiple A-T hydrogen bonds, and π-π stacking between pyrene units and single-walled carbon nanotubes (SWCNTs).
authors: Department of Materials and Optoelectronic Science, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan.
authors: Kai-Wei
authors: KW
authors: Huang
authors: Yu-Rong
authors: YR
authors: Wu
authors: Kwang-Un
authors: KU
authors: Jeong
authors: Shiao-Wei
authors: SW
authors: Kuo
mesh_terms: D057930:Click Chemistry; D006860:Hydrogen Bonding; D057927:Hydrophobic and Hydrophilic Interactions; D009682:Magnetic Resonance Spectroscopy; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry; D011721:Pyrenes / Q000737:chemistry; D013696:Temperature; D013941:Thymine / Q000737:chemistry
chemical_list: D037742:Nanotubes, Carbon; D011108:Polymers; D011137:Polystyrenes; D011721:Pyrenes; C030984:pyrene; D013941:Thymine
keywords: carbon nanotube; helical structures; multiple hydrogen bonding; supramolecular chemistry; π-π Stacking