Synthesis and self-assembly of multiblock and Janus particles

Chen, Qian

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Description

Title

Synthesis and self-assembly of multiblock and Janus particles

Author(s)

Chen, Qian

Issue Date

2012-06-27T21:30:51Z

Director of Research (if dissertation) or Advisor (if thesis)

Granick, Steve

Doctoral Committee Chair(s)

Granick, Steve

Committee Member(s)

• Moore, Jeffrey S.
• Cheng, Jianjun
• Zuo, Jian-Min

Department of Study

Materials Science & Engineerng

Discipline

Materials Science & Engr

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

• colloidal fabrication
• multiblock Janus colloids
• self-assembly

Abstract

We develop general guidelines for the rational design of both building blocks and interaction patterns of patchy colloids in liquid suspension, towards the long-term goal of developing the practical capability to make a colloidal structure, or any colloidal material, that is “assemblable”. Two levels of efforts are included in this thesis, first, the fabrication of patchy colloidal particles on demand, second, the observation and analysis of their self-assembly kinetics. For the second part, we focus on three intertwining topics: phase diagram construction, kinetic pathway selection and external force modulation. A mixture of theoretical calculation, dynamic simulation, and experiments is shown to demonstrate proofs-of-concept. We rely throughout on the capacity, in these colloidal systems, to resolve the motions of individual particles in suspension by optical microscope, this serving as the underpinning, unifying foundation.

Graduation Semester

2012-05

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http://hdl.handle.net/2142/32057

Copyright and License Information

Copyright 2012 Qian Chen

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