Abstract：
:The introduction of polymers into a chiral nematic cellulose nanocrystal (CNC) matrix allows for the tuning of optical and mechanical properties, enabling the development of responsive photonic materials. In this study, we explored the incorporation of hydroxypropyl cellulose (HPC) into a CNC film prepared by slow evaporation. In the composite CNC/HPC thin films, the CNCs adopt a chiral nematic structure, which can selectively reflect certain wavelengths of light to yield a colored film. The color could be tuned across the visible spectrum by changing the concentration or molecular weight of the HPC. Importantly, the composite films were more flexible than pure CNC films with up to a ten-fold increase in elasticity and a decrease in stiffness and tensile strength of up to six times and four times, respectively. Surface modification of the films with methacrylate groups increased the hydrophobicity of the films, and therefore, the water stability of these materials was also improved.
journal_name
Biomacromoleculesjournal_title
Biomacromoleculesauthors
Walters CM,Boott CE,Nguyen TD,Hamad WY,MacLachlan MJdoi
10.1021/acs.biomac.0c00056subject
Has Abstractpub_date
2020-03-09 00:00:00pages
1295-1302issue
3eissn
1525-7797issn
1526-4602journal_volume
21pub_type
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
pub_type： 杂志文章
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更新日期：2008-03-01 00:00:00
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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更新日期：2010-02-08 00:00:00
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
pub_type： 杂志文章
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更新日期：2005-03-01 00:00:00
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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journal_title：Biomacromolecules
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更新日期：2011-03-14 00:00:00
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journal_title：Biomacromolecules
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更新日期：2009-02-09 00:00:00
abstract：:Poly(3-(tert-butoxycarbonyl)-N-vinyl-2-pyrrolidone) has been synthesized and characterized by gel permeation chromatography, Fourier transform infrared spectroscopy, NMR spectroscopy, and thermal analysis. The polymer is a chemically amplified photoresist. Arrays of lines with 25 microm width and 25 microm spacing wer...
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