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Materials Science

D-Index
85
Citations
23329
World Ranking
2184
National Ranking
642

Chemistry

D-Index
84
Citations
22926
World Ranking
2846
National Ranking
967

Research.com Recognitions

  • 2012 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1999 - Fellow of American Physical Society (APS) Citation For imaginative and successful applications of flourescence spectroscopy to polymer physics issues ranging from free volume to free radical polymerization

Overview

John M. Torkelson is affiliated with Northwestern University in the United States. Their research concentrates primarily in the fields of Materials Science and Chemistry, with a notable focus on polymers, polymer composites, and related materials chemistry.

The main fields of study encompass:

  • Materials Science
  • Chemistry

Torkelson's subfields of study include:

  • Polymers and Plastics
  • Organic Chemistry
  • Process Chemistry and Technology
  • Materials Chemistry
  • Biomaterials

The core topics addressed in their work cover:

  • Polymer composites and self-healing
  • Carbon dioxide utilization in catalysis
  • Advanced Polymer Synthesis and Characterization
  • Biodegradable polymer synthesis and properties
  • Synthetic Organic Chemistry Methods
  • Polymer crystallization and properties
  • Material Dynamics and Properties

Among their frequent coauthors are Nathan S. Purwanto, Tong Wang, Logan M. Fenimore, Yixuan Chen, and Mathew J. Suazo. This collaborative work has resulted in publications spread across multiple prominent scientific venues.

Frequent publication venues where Torkelson's work appears include:

  • Macromolecules
  • ACS Applied Polymer Materials
  • Polymer
  • Polymer Chemistry
  • ACS Macro Letters

Recent representative papers by John M. Torkelson illustrate their research directions:

  • "Photocurable bioresorbable adhesives as functional interfaces between flexible bioelectronic devices and soft biological tissues", 2021, Nature Materials
  • "Arresting Elevated-Temperature Creep and Achieving Full Cross-Link Density Recovery in Reprocessable Polymer Networks and Network Composites via Nitroxide-Mediated Dynamic Chemistry", 2021, Macromolecules
  • "Reprocessable covalent adaptable networks with excellent elevated-temperature creep resistance: facilitation by dynamic, dissociative bis(hindered amino) disulfide bonds", 2021, Polymer Chemistry
  • "Dynamic Covalent Polyurethane Networks with Excellent Property and Cross-Link Density Recovery after Recycling and Potential for Monomer Recovery", 2020, ACS Applied Polymer Materials
  • "Simple upcycling of virgin and waste polyethylene into covalent adaptable networks: catalyst-free, radical-based reactive processing with dialkylamino disulfide bonds", 2022, Journal of Materials Chemistry A

John M. Torkelson has been recognized by professional organizations, including being named a Fellow of the American Association for the Advancement of Science in 2012. Earlier, in 1999, they were designated a Fellow of the American Physical Society with citation noting contributions in applying fluorescence spectroscopy to polymer physics, particularly regarding free volume and free radical polymerization.

Best Publications

  • The distribution of glass-transition temperatures in nanoscopically confined glass formers

    Christopher John Ellison;John M. Torkelson

  • Structural Relaxation of Polymer Glasses at Surfaces, Interfaces, and In Between

    Rodney D. Priestley;Christopher John Ellison;Linda J. Broadbelt;John M. Torkelson

  • Spin coating of thin and ultrathin polymer films

    David B. Hall;Patrick Underhill;John M. Torkelson

  • Model polymer nanocomposites provide an understanding of confinement effects in real nanocomposites.

    Perla Rittigstein;Rodney D. Priestley;Linda J. Broadbelt;John M. Torkelson

  • Crumpled graphene nanosheets as highly effective barrier property enhancers.

    Owen C. Compton;Soyoung Kim;Cynthia Pierre;John M. Torkelson

  • Polymer-nanoparticle interfacial interactions in polymer nanocomposites: Confinement effects on glass transition temperature and suppression of physical aging

    Perla Rittigstein;John M. Torkelson

  • On measuring the distribution of local free volume in glassy polymers by photochromic and fluorescence techniques

    John G. Victor;John M. Torkelson

  • Impacts of polystyrene molecular weight and modification to the repeat unit structure on the glass transition-nanoconfinement effect and the cooperativity length scale

    Christopher John Ellison;Manish K. Mundra;John M. Torkelson

  • Polymer−Graphite Nanocomposites: Effective Dispersion and Major Property Enhancement via Solid-State Shear Pulverization

    Katsuyuki Wakabayashi;Cynthia Pierre;Dmitriy A. Dikin;Rodney S. Ruoff

  • Vitrimers Designed Both To Strongly Suppress Creep and To Recover Original Cross-Link Density after Reprocessing: Quantitative Theory and Experiments

    Lingqiao Li;Xi Chen;Kailong Jin;John M. Torkelson

  • Eliminating the Enhanced Mobility at the Free Surface of Polystyrene: Fluorescence Studies of the Glass Transition Temperature in Thin Bilayer Films of Immiscible Polymers

    Connie B. Roth;Katie L. McNerny;Wolter F. Jager;John M. Torkelson

  • Reprocessable polyhydroxyurethane networks exhibiting full property recovery and concurrent associative and dissociative dynamic chemistry: Via transcarbamoylation and reversible cyclic carbonate aminolysis

    Xi Chen;Lingqiao Li;Kailong Jin;John M. Torkelson

  • Confinement and processing effects on glass transition temperature and physical aging in ultrathin polymer films: novel fluorescence measurements.

    C.J. Ellison;S.D. Kim;D.B. Hall;J.M. Torkelson

  • Uniquely Broad Glass Transition Temperatures of Gradient Copolymers Relative to Random and Block Copolymers Containing Repulsive Comonomers

    Jungki Kim;Michelle M. Mok;Robert W. Sandoval;Dong Jin Woo;Dong Jin Woo

  • Orientation and second-harmonic generation in doped polystyrene and poly(methyl methacrylate) films

    Hilary L. Hampsch;Jian Yang;George K. Wong;John M. Torkelson

  • Photocurable bioresorbable adhesives as functional interfaces between flexible bioelectronic devices and soft biological tissues.

    Quansan Yang;Tong Wei;Rose T. Yin;Mingzheng Wu

  • Rotational reorientation dynamics of disperse red 1 in polystyrene: α ‐relaxation dynamics probed by second harmonic generation and dielectric relaxation

    Ali Dhinojwala;George K. Wong;John M. Torkelson

  • Dopant Orientation Dynamics in Doped Second-Order Nonlinear Optical Amorphous Polymers. 1. Effects of Temperature Above and Below Tg in Corona-Poled Films

    Hilary L. Hampsch;Jian Yang;George K. Wong;John M. Torkelson

  • Reprocessable Polymer Networks via Thiourethane Dynamic Chemistry: Recovery of Cross-link Density after Recycling and Proof-of-Principle Solvolysis Leading to Monomer Recovery

    Lingqiao Li;Xi Chen;John M. Torkelson

  • Sensing the glass transition in thin and ultrathin polymer films via fluorescence probes and labels

    Christopher John Ellison;John M. Torkelson

  • Dramatic reduction of the effect of nanoconfinement on the glass transition of polymer films via addition of small-molecule diluent

    Christopher John Ellison;Robert L. Ruszkowski;Nathaniel J. Fredin;John M. Torkelson

  • The roles of phase separation mechanism and coarsening in the formation of poly(methyl methacrylate) asymmetric membranes

    Fu Jya Tsai;John M. Torkelson

Frequent Co-Authors

Christopher J. Ellison
Christopher J. Ellison University of Minnesota
Rodney D. Priestley
Rodney D. Priestley Princeton University
SonBinh T. Nguyen
SonBinh T. Nguyen Northwestern University
Linda J. Broadbelt
Linda J. Broadbelt Northwestern University
Ali Dhinojwala
Ali Dhinojwala University of Akron
Karl A. Scheidt
Karl A. Scheidt Northwestern University
L. Catherine Brinson
L. Catherine Brinson Duke University
George K. Wong
George K. Wong Hong Kong University of Science and Technology
Kenneth R. Shull
Kenneth R. Shull Northwestern University
Matthew Tirrell
Matthew Tirrell University of Chicago

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