Probing Thermoresponsive Polymerization-Induced Self-Assembly with Variable-Temperature Liquid-Cell Transmission Electron Microscopy

Georg M. Scheutz; Mollie A. Touve; Andrea S. Carlini; John B. Garrison; Karthikeyan Gnanasekaran; Brent S. Sumerlin; Nathan C. Gianneschi

doi:10.1016/j.matt.2020.11.017

Probing Thermoresponsive Polymerization-Induced Self-Assembly with Variable-Temperature Liquid-Cell Transmission Electron Microscopy

Georg M. Scheutz, Mollie A. Touve, Andrea S. Carlini, John B. Garrison, Karthikeyan Gnanasekaran, Brent S. Sumerlin^*, Nathan C. Gianneschi^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Block copolymers composed of a hydrophilic and a hydrophobic segment self-assemble in water into nanoparticles with sizes and shapes that depend on the nature and length of each segment. Accordingly, it is possible to control the assembly process to generate various nanomaterials, such as spherical micelles, worm-like micelles, or vesicles. We developed a method to directly synthesize block copolymers inside the liquid cell of an electron microscope, providing unprecedented real-time insight into the progression and evolution of polymerization and self-assembly processes.

Original language	English (US)
Pages (from-to)	722-736
Number of pages	15
Journal	Matter
Volume	4
Issue number	2
DOIs	https://doi.org/10.1016/j.matt.2020.11.017
State	Published - Feb 3 2021

Funding

This research was conducted with Government support under and awarded to N.C.G. and B.S.S. by DoD through the ARO ( W911NF-17-1-0326 ) and a National Defense Science and Engineering Graduate Fellowship, 32 CFR 168a , awarded to M.A.T. In addition, the authors thank the National Science Foundation for support of this work through CHE-1905270. The authors thank Dr. Chris Forman for his assistance with the design of the graphical content.

Keywords

MAP2: Benchmark
PISA
RAFT polymerization
TEM
block copolymer
liquid cell
liquid phase
polymerization-induced self-assembly

ASJC Scopus subject areas

General Materials Science

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10.1016/j.matt.2020.11.017

Cite this

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title = "Probing Thermoresponsive Polymerization-Induced Self-Assembly with Variable-Temperature Liquid-Cell Transmission Electron Microscopy",

abstract = "Block copolymers composed of a hydrophilic and a hydrophobic segment self-assemble in water into nanoparticles with sizes and shapes that depend on the nature and length of each segment. Accordingly, it is possible to control the assembly process to generate various nanomaterials, such as spherical micelles, worm-like micelles, or vesicles. We developed a method to directly synthesize block copolymers inside the liquid cell of an electron microscope, providing unprecedented real-time insight into the progression and evolution of polymerization and self-assembly processes.",

keywords = "MAP2: Benchmark, PISA, RAFT polymerization, TEM, block copolymer, liquid cell, liquid phase, polymerization-induced self-assembly",

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AU - Scheutz, Georg M.

AU - Touve, Mollie A.

AU - Carlini, Andrea S.

AU - Garrison, John B.

AU - Gnanasekaran, Karthikeyan

AU - Sumerlin, Brent S.

AU - Gianneschi, Nathan C.

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AB - Block copolymers composed of a hydrophilic and a hydrophobic segment self-assemble in water into nanoparticles with sizes and shapes that depend on the nature and length of each segment. Accordingly, it is possible to control the assembly process to generate various nanomaterials, such as spherical micelles, worm-like micelles, or vesicles. We developed a method to directly synthesize block copolymers inside the liquid cell of an electron microscope, providing unprecedented real-time insight into the progression and evolution of polymerization and self-assembly processes.

KW - MAP2: Benchmark

KW - PISA

KW - RAFT polymerization

KW - TEM

KW - block copolymer

KW - liquid cell

KW - liquid phase

KW - polymerization-induced self-assembly

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Probing Thermoresponsive Polymerization-Induced Self-Assembly with Variable-Temperature Liquid-Cell Transmission Electron Microscopy

Abstract

Funding

Keywords

ASJC Scopus subject areas

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