Study on the dynamics of the polymer chain confined in metal oxide cluster by quasielastic neutron scattering

Yixuan ZHANG; Yang LI

doi:10.11889/j.0253-3219.2016.hjs.39.110502

您当前的位置：

首页 >

文章列表页 >

Study on the dynamics of the polymer chain confined in metal oxide cluster by quasielastic neutron scattering

NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH | 更新时间：2021-05-24

- Study on the dynamics of the polymer chain confined in metal oxide cluster by quasielastic neutron scattering
- NUCLEAR TECHNIQUES Vol. 39, Issue 11, Article number: 110502(2016)
- 作者机构：
  
  中国核工业集团公司北京 100822
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2016.hjs.39.110502
  CLC： TL99;O631.21
- Received：13 August 2016，
  
  Revised：20 September 2016，
  
  Published：2016-11
- 稿件说明：
移动端阅览
Yixuan ZHANG, Yang LI. Study on the dynamics of the polymer chain confined in metal oxide cluster by quasielastic neutron scattering[J]. Nuclear techniques, 2016, 39(11): 110502
DOI：

Yixuan ZHANG, Yang LI. Study on the dynamics of the polymer chain confined in metal oxide cluster by quasielastic neutron scattering[J]. Nuclear techniques, 2016, 39(11): 110502 DOI： 10.11889/j.0253-3219.2016.hjs.39.110502.

摘要

中子散射技术是研究凝聚态物质和材料性质的重要手段。通过将碳链植入金属氧化物团簇分子的内部，可以实现对碳链运动的彻底改变。通过分析中子谱得知，这些金属氧化物团簇分子内部的碳链的大尺度空间平移运动几乎被完全限制，碳链上的甲基和亚甲基的转动速度也被大幅度减慢。另外，碳链上的不同碳原子的运动有不均匀性。这些现象都表明，金属氧化物团簇分子对于其内部的高分子运动有强约束效应。该效应在金属氧化物团簇的包裹行为上有决定性作用。

Abstract

Background

Metal oxide clusters are very important inorganic materials

which are widely used in catalytic reactions. And neutron scattering is an important technique for the study of the condensed matters and materials.

Purpose

The aim is to study the dynamics of the polymer chain confined in metal oxide cluster molecules.

Methods

Quasielastic neutron scattering technique is employed to measure the dynamics of the sample. A theoretical model

which assumes that the vibrational

translational and rotational motions are independent of each other

is used to analyze the neutron spectra.

Results

The dynamics of the polymer chain confined in metal oxide cluster are highly restricted in space. The large-scale motion of the chain is greatly hindered. The rotations of the methyl group and methylene group are also slowed down.

Conclusion

The metal oxide cluster exhibits ultra-confinement effect on the polymer chains.

关键词

Keywords

references

S Kopilevich , A Gil , M Garcia-Ratés , . Catalysis in a porous molecular capsule:activation by regulated access to sixty metal centers spanning a truncated icosahedron . Journal of American Chemistry Society , 2012 . 134 13082 - 13088 . DOI: 10.1021/ja304513t http://doi.org/10.1021/ja304513t .

S Kopilevich , A Müller , I A Weinstock . Amplified rate acceleration by simultaneous up-regulation of multiple active sites in an endo-functionalized porous capsule . Journal of American Chemistry Society , 2015 . 137 12740 - 12743 . DOI: 10.1021/jacs.5b06211 http://doi.org/10.1021/jacs.5b06211 .

P Yin , B Wu , E Mamontov , . X-ray and neutron scattering study of the formation of core-shell-type polyoxometalates . Journal of American Chemistry Society , 2016 . 138 2638 - 2643 . DOI: 10.1021/jacs.5b11465 http://doi.org/10.1021/jacs.5b11465 .

H C Zhou , J R Long , O M Yaghi . Introduction to metal-organic frameworks . Chemical Review , 2012 . 112 673 - 674 . DOI: 10.1021/cr300014x http://doi.org/10.1021/cr300014x .

Z Wang , K Ito , J B Leão , . Liquid-liquid phase transition and its phase diagram in deeply-cooled heavy water confined in a nanoporous silica matrix . Journal of Physical Chemistry Letters , 2015 . 6 2009 - 2014 . DOI: 10.1021/acs.jpclett.5b00827 http://doi.org/10.1021/acs.jpclett.5b00827 .

M C Bellissent-Funel , S H Chen , J M Zanotti . Single-particle dynamics of water molecules in confined space . Physical Review E , 1995 . 51 4558 DOI: 10.1103/PhysRevE.51.4558 http://doi.org/10.1103/PhysRevE.51.4558 .

李华 , 张丽丽 , 易洲 . 准弹性中子散射(QENS)在受限水动态研究中的应用 . 核技术 , 2014 . 37 020604 DOI: 10.11889/j.0253-3219.2014.hjs.37.020604 http://doi.org/10.11889/j.0253-3219.2014.hjs.37.020604 .

Hua LI , Lili ZHANG , Zhou YI . Application of quasi-elastic neutron scattering to dynamics study of confined water . Nuclear Techniques , 2014 . 37 020604 DOI: 10.11889/j.0253-3219.2014.hjs.37.020604 http://doi.org/10.11889/j.0253-3219.2014.hjs.37.020604 .

Z Wang , L L Daemen , Y Cheng , . Nanoconfinement inside molecular metal oxide clusters:dynamics and modified encapsulation behavior . Chemistry , 2016 . 22 14131 - 14136 . DOI: 10.1002/chem.201603239 http://doi.org/10.1002/chem.201603239 .

S H Chen , M Kotlarchyk . Interaction of photons and neutrons with matter:an introduction , : Singapore World Scientific , 1997 .

S H Chen . Small angle neutron scattering studies of the structure and interaction in micellar and microemulsion systems . Annual Reviews of Physical Chemistry , 1986 . 37 351 - 399 . DOI: 10.1146/annurev.pc.37.100186.002031 http://doi.org/10.1146/annurev.pc.37.100186.002031 .

M Bée . Quasielastic neutron scattering , : Bristol Adam Hilger , 1988 .

E Mamontov , K W Herwig . A time-of-flight backscattering spectrometer at the spallation neutron source, BASIS . Review of Scientific Instruments , 2011 . 82 085109 DOI: 10.1063/1.3626214 http://doi.org/10.1063/1.3626214 .

Z Wang , E Fratini , M Li , . Hydration-dependent dynamic crossover phenomenon in protein hydration water . Physical Review E , 2014 . 90 042705 DOI: 10.1103/PhysRevE.90.042705 http://doi.org/10.1103/PhysRevE.90.042705 .

L Liu , S H Chen , A Faraone , . Pressure dependence of fragile-to-strong transition and a possible second critical point in supercooled confined water . Physical Review Letters , 2005 . 95 117802 DOI: 10.1103/PhysRevLett.95.117802 http://doi.org/10.1103/PhysRevLett.95.117802 .

Z Wang , P Le , K Ito , . Dynamic crossover in deeply cooled water confined in MCM-41 at 4 kbar and its relation to the liquid-liquid transition hypothesis . Journal of Chemical Physics , 2015 . 143 114508 DOI: 10.1063/1.4930855 http://doi.org/10.1063/1.4930855 .

V F Sears . Cold neutron scattering by molecular liquids III:methane . Canadian Journal of Physics , 1967 . 45 237 - 254 . DOI: 10.1139/p67-025 http://doi.org/10.1139/p67-025 .

J H Roh , V N Novikov , R B Gregory , . Onsets of anharmonicity in protein dynamics . Physical Review Letters , 2005 . 95 038101 DOI: 10.1103/PhysRevLett.95.038101 http://doi.org/10.1103/PhysRevLett.95.038101 .

M D Ediger , C A Angell , S R Nagel . Supercooled liquids and glasses . Journal of Physical Chemistry , 1996 . 100 13200 - 13212 . DOI: 10.1021/jp953538d http://doi.org/10.1021/jp953538d .

L Berthier , G Biroli . Theoretical perspective on the glass transition and amorphous materials . Reviews of Modern Physics , 2011 . 83 587 - 645 . DOI: 10.1103/RevModPhys.83.587 http://doi.org/10.1103/RevModPhys.83.587 .

J Colmenero , A J Moreno , A Alegría . Neutron scattering investigations on methyl group dynamics in polymers . Progress in Polymer Science , 2005 . 30 1147 - 1184 . DOI: 10.1016/j.progpolymsci.2005.08.001 http://doi.org/10.1016/j.progpolymsci.2005.08.001 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Design of soft X-ray photon correlation spectroscopy device

A review of the kinetics of oxidation and reduction of sale-free reagents in the U/Pu separation process

Study of biological materials by neutron scattering

The role of nuclear techniques in traditional Chinese medicine and Chinese materia medica

Related Author

QU Sishi

GUO Zhi

TAI Renzhong

ZHANG Xiangzhi

LIU Haigang

YU Huaina

LI Sa1 GAO Yaobin2 OUYANG Yinggen1 1

高耀斌

Related Institution

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China) 2(University of Chinese Academy of Sciences

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China) 4(ShanghaiTech University

上海科技大学

China Institute of Atomic Energy, Beijing 102413, China) 2

中核四O四有限公司

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：881268 Visits Today：795

⁰