Citation:
DONG Yan-Ming, BI Dan-Xia, ZHAO Ya-Qing, MAO Wei, YANG Liu-Lin, WANG Hui-Wu. UV-Absorption Characteristics of Eleven Chitosan Derivatives[J]. Chinese Journal of Applied Chemistry,
;2005, 22(10): 1050-1054.
-
The UV absorption spectra of eleven chitosan derivatives,for example O-cyanoethyl chitosan and N-benzyl chitosan,were obtained.In dilute solution,the UV-Vis absorption spectra of all these derivatives cover the ultraviolet B region(280~320 nm).The UV-Vis spectra of N-salicylaldehyde modified chitosan and N-cinnamaldehyde modified chitosan cover part of the ultraviolet A region(>320 nm).In concentrated solution,complete spectra cannot be achieved due to the limit of the instrument.With the increase of the concentration,red shift appears in the UV-Vis spectra,which indicates that the state of aggregation has changed.At the critical concentration for the cholesteric liquid crystalline phase,the position of the peak shifts obviously.This phenomenon can be explained by the increase of the interaction of the chromophore induced by the ordered arrangement of the mesophase.Moreover the UV-Vis spectrum of the film of N-benzyl chitosan in liquid crystalline state covers the whole ultraviolet region.The UV-absorption characteristics of these chitosan derivatives show that they may be used as photoprotectants employed in cosmetic and pharmaceutical preparations.
-
Keywords:
- chitin,
- cholesteric liquid crystal,
- UV absorber,
- cosmetic
-
-
-
-
[1]
Dong-Bing Cheng , Junxin Duan , Haiyu Gao . Experimental Teaching Design on Chitosan Extraction and Preparation of Antibacterial Gel. University Chemistry, 2024, 39(2): 330-339. doi: 10.3866/PKU.DXHX202308053
-
[2]
Yukai Jiang , Yihan Wang , Yunkai Zhang , Yunping Wei , Ying Ma , Na Du . Characterization and Phase Diagram of Surfactant Lyotropic Liquid Crystal. University Chemistry, 2024, 39(4): 114-118. doi: 10.3866/PKU.DXHX202309033
-
[3]
Yi Li , Zhaoxiang Cao , Peng Liu , Xia Wu , Dongju Zhang . Revealing the Coloration and Color Change Mechanisms of the Eriochrome Black T Indicator through Computational Chemistry and UV-Visible Absorption Spectroscopy. University Chemistry, 2025, 40(3): 132-139. doi: 10.12461/PKU.DXHX202405154
-
[4]
Jianjun LI , Mingjie REN , Lili ZHANG , Lingling ZENG , Huiling WANG , Xiangwu MENG . UV-assisted degradation of tetracycline hydrochloride by MnFe2O4@activated carbon activated persulfate. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1869-1880. doi: 10.11862/CJIC.20240187
-
[5]
Hongsheng Tang , Yonghe Zhang , Dexiang Wang , Xiaohui Ning , Tianlong Zhang , Yan Li , Hua Li . A Wonderful Journey through the Kingdom of Hazardous Chemicals. University Chemistry, 2024, 39(9): 196-202. doi: 10.12461/PKU.DXHX202403098
-
[6]
Guang Huang , Lei Li , Dingyi Zhang , Xingze Wang , Yugai Huang , Wenhui Liang , Zhifen Guo , Wenmei Jiao . Cobalt’s Valor, Nickel’s Foe: A Comprehensive Chemical Experiment Utilizing a Cobalt-based Imidazolate Framework for Nickel Ion Removal. University Chemistry, 2024, 39(8): 174-183. doi: 10.3866/PKU.DXHX202311051
-
[7]
Dongxia Zhang , Sijia Hao , Jiarui Wang , Jiwei Wang , Xiaogang Dong , Liang Jiao . Construction and Reflection on the Safety Management of Hazardous Chemicals in University Laboratories. University Chemistry, 2024, 39(10): 229-235. doi: 10.12461/PKU.DXHX202403078
-
[8]
Hengwei Wei , Liqiu Zhao , Jiqiang Geng , Xuebo Xu , Yingpeng Ma , Yuhao Liu , Mingzhe Han , Huan Jiao , Lingling Wei . Research on Safety Management of Hazardous Chemicals and Talent Cultivation in Universities Driven by Production-Education Integration. University Chemistry, 2024, 39(10): 289-298. doi: 10.12461/PKU.DXHX202403022
-
[9]
Yi Yang , Xin Zhou , Miaoli Gu , Bei Cheng , Zhen Wu , Jianjun Zhang . S型ZnO/CdIn2S4光催化剂制备H2O2偶联苄胺氧化的超快电子转移飞秒吸收光谱研究. Acta Physico-Chimica Sinica, 2025, 41(6): 100064-. doi: 10.1016/j.actphy.2025.100064
-
[10]
Mengyao Shi , Kangle Su , Qingming Lu , Bin Zhang , Xiaowen Xu . Determination of Potassium Content in Tobacco Stem Ash by Flame Atomic Absorption Spectroscopy. University Chemistry, 2024, 39(10): 255-260. doi: 10.12461/PKU.DXHX202404105
-
[11]
Jiahui CHEN , Tingting ZHENG , Xiuyun ZHANG , Wei LÜ . Research progress of near-infrared absorption inorganic nanomaterials in photothermal and photodynamic therapy of tumors. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2396-2414. doi: 10.11862/CJIC.20240106
-
[12]
Jizhou Liu , Chenbin Ai , Chenrui Hu , Bei Cheng , Jianjun Zhang . 六氯锡酸铵促进钙钛矿太阳能电池界面电子转移及其飞秒瞬态吸收光谱研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2402006-. doi: 10.3866/PKU.WHXB202402006
-
[13]
Min LI , Xianfeng MENG . Preparation and microwave absorption properties of ZIF-67 derived Co@C/MoS2 nanocomposites. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1932-1942. doi: 10.11862/CJIC.20240065
-
[14]
Wenlong LI , Xinyu JIA , Jie LING , Mengdan MA , Anning ZHOU . Photothermal catalytic CO2 hydrogenation over a Mg-doped In2O3-x catalyst. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 919-929. doi: 10.11862/CJIC.20230421
-
[15]
Kun WANG , Wenrui LIU , Peng JIANG , Yuhang SONG , Lihua CHEN , Zhao DENG . Hierarchical hollow structured BiOBr-Pt catalysts for photocatalytic CO2 reduction. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1270-1278. doi: 10.11862/CJIC.20240037
-
[16]
Juntao Yan , Liang Wei . 2D S-Scheme Heterojunction Photocatalyst. Acta Physico-Chimica Sinica, 2024, 40(10): 2312024-. doi: 10.3866/PKU.WHXB202312024
-
[17]
Yuanyin Cui , Jinfeng Zhang , Hailiang Chu , Lixian Sun , Kai Dai . Rational Design of Bismuth Based Photocatalysts for Solar Energy Conversion. Acta Physico-Chimica Sinica, 2024, 40(12): 2405016-. doi: 10.3866/PKU.WHXB202405016
-
[18]
Xiaoyan Wang , Chao Wang , Dongmei Dai , Yanling Geng , Hongtao Gao . Design of Ideological and Political Education for the Experiment on Calcium Content Determination in Calcium Supplements. University Chemistry, 2024, 39(2): 162-167. doi: 10.3866/PKU.DXHX202307074
-
[19]
Xiuyun Wang , Jiashuo Cheng , Yiming Wang , Haoyu Wu , Yan Su , Yuzhuo Gao , Xiaoyu Liu , Mingyu Zhao , Chunyan Wang , Miao Cui , Wenfeng Jiang . Improvement of Sodium Ferric Ethylenediaminetetraacetate (NaFeEDTA) Iron Supplement Preparation Experiment. University Chemistry, 2024, 39(2): 340-346. doi: 10.3866/PKU.DXHX202308067
-
[20]
Tongyu Zheng , Teng Li , Xiaoyu Han , Yupei Chai , Kexin Zhao , Quan Liu , Xiaohui Ji . A DIY pH Detection Agent Using Persimmon Extract for Acid-Base Discoloration Popularization Experiment. University Chemistry, 2024, 39(5): 27-36. doi: 10.3866/PKU.DXHX202309107
-
[1]
Metrics
- PDF Downloads(1)
- Abstract views(820)
- HTML views(187)