Jianzhu Ju

Institution:
ESPCI, Paris

 

Supervisors:
Costantino Creton
Field of expertise:
Polymer physics and structural characterization
PhD subject:
Application property of double dynamics polymer networks

My project is the application property of double dynamics polymer networks. The main task will be combining property measurement and mesoscopic dynamics/structure characterization. To achieve the goal, diffusing wave spectroscopy (DWS) is applied to measure the dynamics in polymer network during fracture and other different condition.

DWS is sensitive to mesoscopic dynamics of polymer network and compatible with other characterization methods. With correlation from images as function of time, dynamics of polymer network in mesoscopic scale can be quantitatively characterized. Combined with macroscopic mechanical measurement and mechanophore study on bonds breakage, we will be able to provide a hierarchical model for fracture mechanism. On the other hand, the mesoscopic changes can be detectable even long time before any macroscopic behavior, which will provide the methods to predict the fracture before actual failure of the material.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Language
  • English Speaking
  • Chinese Speaking
Experimental Techniques and Skills
  • Preparation and characterization of chemical cross-linked polymer
  • In-situ synchrotron radiation small and wide-angle X-ray scattering (SAXS/WAXS) experiment and data processing
  • In-situ Small Angle Neutron Scattering (SANS), Dynamic Light Scattering (DLS)
  • Fourier-Transform Infrared Spectroscopy (FT-IR), Polarized Optical Microscopy (POM) and Quantum Cascade Lasers (QCL) experiment
  • Scanning Electron Microscope (SEM), Small-Amplitude Oscillatory Shear (SAOS), Atomic Force Microscopy (AFM) and Differential Scanning Calorimetry (DSC) sample preparation and measurement
  • Research and maintenance service in large-scale research facilities: synchrotron radiation and neutron resources
  • Machinery design: Inventor and SolidWorks
  • Apparatus and mechatronics design based on LabVIEW
  • Data Processing with Origin and Python
Honors
  • National Scholarship, 2016
  • Dalian Outstanding Graduate, 2014
  • Dalian university of technology scholarship for academic excellence, 2011~2013
  • Dalian university of technology scholarship for Ideological Development, 2012
  • Outstanding Student Cadres, 2011 and 2013
  • Outstanding volunteer of 12th Challenge-cup Extracurricular and Academic Contest, 2011
  • Suzhou Industrial Park Scholarship, 2011
  • First Prize in the Liaoning High School Chemistry Olympic Competition, 2009

Curriculum Vitae

Employment history

 

Education

PSL research University

2018 — Present
PhD in Polymer Science
Laboratory of Soft Matter Science and Engineering

University of Science and Technology of China

2014—2017
Master of Engineering in Material physics
National synchrotron radiation laboratory

Main subjects:

  • X-ray Diffraction
  • Thermal Analysis Method and Its Application
  • Scaling Concept in Polymer Physics
  • Fundamentals of Synchrotron Radiation Applications
  • Materials Chemistry

Advisor: Prof. Liangbin Li
Thesis Title: Fast Flow Induced Non-Equilibrium Phase Transition of Isotactic Polypropylene

School of Mechanical Engineering, Dalian University of Technology

2010 — 2014
Bachelor of Engineering in Measurement Technology and Apparatus

Main subjects:

  • English Language, Japanese Language
  • Mathematics, Physics, Chemistry
  • Mechanical Engineering, Machinery Design, Mechatronics
  • Computer-Aided Design (Inventor, CAD, SolidWorks)

GPA: 3.6/4
Ranking: 1/30
Thesis Title: High Speed Rheometer for the Study of Flow Induced Crystallization in
Polymer Melt

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