EBSCO Logo
Connecting you to content on EBSCOhost
Results
Title

Helical Fibers via Evaporation‐Driven Self‐Assembly of Surface‐Acylated Cellulose Nanowhiskers.

Authors

Liu, Huan; Pang, Bo; Garces, Renata; Dervisoglu, Riza; Chen, Longquan; Andreas, Loren; Zhang, Kai

Abstract

Many natural materials have helical or twisting shapes. Herein, we show the formation of helical fibers with the lengths of micrometers by the evaporation‐driven self‐assembly on silicon wafers of functionalized cellulose nanowhiskers (CNWs) with surface‐attached acyl chains. The self‐assembly process and the final helical structures were affected by parameters including the wettability of substrates, dispersing solvents, the amount of 10‐undecenoyl groups, the crystallinity, the dimension of CNWs, and the length of acyl chains. In particular, surface‐acylated CNWs with a certain amount of 10‐undecenoyl groups (ca. 3.52 mmol g−1), an appropriate crystallinity (ca. 40 %), a length of about 135 nm, and a diameter of around 4 nm, preferentially self‐assembled into explicit left‐handed helical fibers from their THF suspensions on wafers. Thus, we showed novel particular self‐assembly behaviors of surface‐acylated CNWs, and we expanded the materials spectrum for the construction of helical structures.

Subjects

HELICAL structure; MOLECULAR self-assembly; CELLULOSE fibers; SILICON wafers; CRYSTALLINITY

Publication

Angewandte Chemie, 2018, Vol 130, Issue 50, p16561

ISSN

0044-8249

Publication type

Academic Journal

DOI

10.1002/ange.201808250

EBSCO Connect | Privacy policy | Terms of use | Copyright | Manage my cookies
Journals | Subjects | Sitemap
© 2025 EBSCO Industries, Inc. All rights reserved