IR Studies on Conformation Changes of Poly(ethylene oxide) Thin Films

Abstract

Abstract: The conformation changes in PEO thin films were studied by means of FTIR-ATR. The results showed that there were some pronounced intensity changes of some bands in IR spectra of PEO thin films when the film thickness was changed. With the decrease of the thickness of the PEO films, the amount of the gauche conformation relative to the trans conformation of PEO crystal increased. This conformation change indicates PEO chains prefer to assume the helical structure near the surface of the substrate, which should be resulted from the interactions between PEO chains and the substrate. This suggests the possibility for using thickness to adjust PEO chains conformation in the crystalline area.

Key words: PEO, Conformation, Thin film, IR spectrum

CLC Number:

O631

TrendMD:

CHEN Zhou, WANG Zhen, YANG Rui, XIE Xu-Ming . IR Studies on Conformation Changes of Poly(ethylene oxide) Thin Films[J]. Chem. J. Chinese Universities, 2004, 25(2): 385.

[1]	GONG Yanxi, WANG Jianbing, CHAI Buyu, HAN Yuanchun, MA Yunfei, JIA Chaomin. Preparation of Potassium Doped g-C₃N₄ Thin Film Photoanode and Its Application in Photoelectrocatalytic Oxidation of Diclofenac Sodium in Water [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220005.
[2]	MIN Jing, WANG Liyan. ¹H NMR Study on the Conformation of Aromatic Amides Limited by Three-center Hydrogen Bonds [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220084.
[3]	CAO Meiqi, LIU Xia, CUI Shuxun. Single-molecule Mechanics of Polyacrylamide Under Different Liquid Environments [J]. Chem. J. Chinese Universities, 2021, 42(9): 2982.
[4]	MENG Lili, CHEN Linlin, ZHANG Xiaoliang, XIE Linghai, LIU Huan. Controllable Liquid Transfer for Preparing Oriented Polymer Thin Films： Toward the Enhanced Performance of PLED [J]. Chem. J. Chinese Universities, 2021, 42(4): 1260.
[5]	FENG Zhongmin, YANG Lan, SUN Ting. Sampling of Ammonium Ion in High Salinity Waters Using Diffusive Gradients in Thin Films Technique [J]. Chem. J. Chinese Universities, 2021, 42(10): 3082.
[6]	DAI Lijun, SUN Zhaoyan. Perspective on the Structure and Dynamics of Polymer Chains in Polymer Nanocomposites ^† [J]. Chem. J. Chinese Universities, 2020, 41(5): 924.
[7]	ZHANG Min, LIU Huan. Research Processes in Fabricating Micro-patterned Quantum Dot Films by Solution Processes ^† [J]. Chem. J. Chinese Universities, 2020, 41(3): 401.
[8]	MA Haoxiang,LAI Hua,ZHANG Enshuang,LÜ Tong,CHENG Zhongjun,LIU Yuyan. Preparation of Bonded Super-hydrophobic Thin Film^† [J]. Chem. J. Chinese Universities, 2019, 40(3): 560.
[9]	CAI Yanchao,NIU Pengfei,SHEN Zhenlu,LI Meichao. Electrocatalytic Oxidative Coupling of Primary Amines with the Medium ABNO ^† [J]. Chem. J. Chinese Universities, 2019, 40(11): 2308.
[10]	YE Longqiang,KANG Shuo,ZHANG Weihao,ZHANG Yulu,HUI Zhenzhen,JIANG Bo. Sol-gel Preparation of Anti-Fogging SiO₂/SiO₂-TiO₂ Double-layer Antireflective Coating ^† [J]. Chem. J. Chinese Universities, 2019, 40(11): 2274.
[11]	ZHAO Zu, LI Rui, ZHANG Xiaochao, ZHANG Changming, LIU Jianxin, WANG Yawen, WANG Yunfang, FAN Caimei. Electrochemical In-situ Synthesis and Photocatalytic Properties of BiF₃ Thin Films^† [J]. Chem. J. Chinese Universities, 2018, 39(8): 1775.
[12]	YE Longqiang, GE Xinming, ZHANG Yulu, HUI Zhenzhen, WANG Xuchun, JIANG Bo. Design and Preparation of Non-quarter-wave SiO₂/TiO₂Double-layer Antireflective Coating^† [J]. Chem. J. Chinese Universities, 2018, 39(7): 1392.
[13]	ZHANG Hong, CAI Wensheng, SHAO Xueguang. Effect of Different Force Fields on B-DNA to A-DNA Conversion^† [J]. Chem. J. Chinese Universities, 2018, 39(6): 1205.
[14]	SUN Yang, YAN Chuang, XIE Qiang, SHI Chao, ZHANG Liang, WANG Lijuan, SUN Lijing. Effect of Heterogeneous Inducing Bilayer on the Properties of Rubrene Thin Film Transistors^† [J]. Chem. J. Chinese Universities, 2018, 39(6): 1221.
[15]	GAO Chengyao, TONG Jianhua, BIAN Chao, SUN Jizhou, LI Yang, WANG Jinfen, GONG Shun, HUI Yun, XIA Shanhong. Electroanalytical Sensing of Trace Cd(Ⅱ) Using in-situ Bismuth Modified Boron Doped Diamond Electrode^† [J]. Chem. J. Chinese Universities, 2018, 39(3): 447.

IR Studies on Conformation Changes of Poly(ethylene oxide) Thin Films

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments