Issue 2, 2020
From the journal:

Polymer Chemistry

Thermo-responsive 3D-printed polyrotaxane monolith†

Qianming Lin, ORCID logo a   Miao Tanga  and  Chenfeng Ke ORCID logo *a  

* Corresponding authors

a Department of Chemistry, Dartmouth College, 6128 Burke Laboratory, Hanover, New Hampshire, USA
E-mail: chenfeng.ke@dartmouth.edu

Abstract

Thermo-responsive 3D-printed hydrogels that are composed of methylated α-cyclodextrin polyrotaxanes have been synthesized through post-3D-printing methylation. With a high methylation degree of the threaded α-cyclodextrins, the fabricated monolith exhibits a two-stage thermo-induced aggregation behavior, in which a second micro-crystallization process was identified for the first time. The methylated polyrotaxane monoliths possess reversible temperature-dependent size, transparency, and elastic moduli switching in an aqueous environment. Through dual-material 3D printing, the 3D-printed monolith actuates back-and-forth at different temperatures.

Graphical abstract: Thermo-responsive 3D-printed polyrotaxane monolith

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Article information

DOI
https://doi.org/10.1039/C9PY01510H
Article type
Communication
Submitted
07 Oct 2019
Accepted
29 Oct 2019
First published
29 Oct 2019

Polym. Chem., 2020,11, 304-308

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Thermo-responsive 3D-printed polyrotaxane monolith

Q. Lin, M. Tang and C. Ke, Polym. Chem., 2020, 11, 304 DOI: 10.1039/C9PY01510H

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