Fabrication of Reflective Color Films from Cellulose Derivatives
Fabrication of Reflective Color Films from Cellulose Derivatives
复制标题
用纤维素衍生物制备反光彩色薄膜
DOI：
10.2494/photopolymer.33.467
复制
发表时间：
2020
影响因子：
0.8
通讯作者：
S. Furumi
中科院分区：
文献类型：
--
作者：
Hibiki Shimokawa;Kenichiro Hayata;Masashi Fukawa;S. Furumi
在本研究中，我们以羟丙基纤维素衍生物与水为原料，制备出溶致液晶反射彩色薄膜。当侧链含有丙烯酰基酯的HPC衍生物（HPC-AcE）完全溶解于水形成溶致CLC（HPC-AcE_H_2O）时，在室温下可观察到可见光范围内的布拉格反射。此外，溶致CLC混合物经紫外光照射后，其反射色在室温下可以保持不变。该报告制定了一项重要的指导方针，以利用天然聚合物和水制造对人类和全球环境安全且低风险的彩色CLC纤维素薄膜。
In this study, we fabricated the reflective color films of lyotropic cholesteric liquid crystals (CLCs) by using a hydroxypropyl cellulose (HPC) derivative and water. When HPC derivatives possessing acryloyl esters in the side chains (HPC-AcE) were completely dissolved in water to form the lyotropic CLC (HPC-AcE_H2O), we could observe Bragg reflection in the visible wavelength range at room temperature. Furthermore, after the lyotropic CLC mixtures were irradiated with UV light, the reflection colors could be preserved at room temperature. This report has established an important guideline to fabricate the colored CLC cellulose films with safety and low risks for both human being and global environment from naturally occurring polymers and water.