Fabrication and Thermal Insulation Properties of Bamboo-Shaped Polymer Fibers by Selective Solvent Vapor Annealing

Macromolecular Rapid Communications
Yu-Jing ChiuJiun-Tai Chen

Abstract

Fibrillar materials have gained much attention recently because of their unique properties and potential applications. Although many methods have been developed to fabricate materials, it remains challenging to prepare fibrillar materials containing multicomponent materials or even with complex structures. Here, a facile strategy is developed to fabricate bamboo-shaped fibers by treating electrospun polymer core-shell fibers with solvent vapor annealing. Electrospun polystyrene (PS)/poly(methyl methacrylate) (PMMA) core-shell fibers are first prepared by electrospinning PS/PMMA blend solutions via a phase separation process. When the PS/PMMA core-shell fibers are annealed with the vapor of cyclohexane, which swells and delocalizes the PS domains selectively, the fibers transform into bamboo-shaped structures. The bamboo-shaped structures can be further examined by swelling and delocalizing the PMMA domains selectively, revealing the undulated PS structures. The thermal insulation properties of the fibers with bamboo-shaped structures are observed to be enhanced compared with the original polymer core-shell fibers.

References

Feb 3, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Alexander V BazilevskyConstantine M Megaridis
Jun 23, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Santanu Bhattacharya, Suman K Samanta
Feb 18, 2009·Macromolecular Rapid Communications·Dian ChenThomas P Russell
Jan 24, 2014·Advanced Materials·Yue YuJianhua Qin
Jul 22, 2014·Macromolecular Rapid Communications·Jianzhao LiuBingbing Li
Feb 3, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Hao-Wen KoJiun-Tai Chen
Sep 21, 2017·Nature Communications·Lili CaiYi Cui
Feb 15, 2018·Advanced Materials·Ying CuiHao Bai

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Citations

Feb 7, 2019·Macromolecular Rapid Communications·Xi YuBin Ding
Mar 6, 2019·Macromolecular Rapid Communications·Nayeleh DeirramGeorgina K Such
Feb 12, 2020·Pharmaceutics·Yu-Jing ChiuGareth R Williams
Dec 25, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Kai-Jie ChangJiun-Tai Chen

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