A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers

Polymer self-adhesion due to the interdiffusion of macromolecules has been an active area of research for several decades. Here, we report a new phenomenon of sub-Tg, solid-state, plasticity-induced bonding; where amorphous polymeric films were bonded together in a period of time on the order of a s...

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Main Authors: Padhye, Nikhil, Parks, David Moore, Trout, Bernhardt L, Slocum, Alexander H
Other Authors: Massachusetts Institute of Technology. Department of Chemical Engineering
Format: Article
Language:en_US
Published: Nature Publishing Group 2017
Online Access:http://hdl.handle.net/1721.1/110098
https://orcid.org/0000-0001-5833-5178
https://orcid.org/0000-0002-9060-227X
https://orcid.org/0000-0003-1417-9470
https://orcid.org/0000-0002-5048-4109
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author Padhye, Nikhil
Parks, David Moore
Trout, Bernhardt L
Slocum, Alexander H
author2 Massachusetts Institute of Technology. Department of Chemical Engineering
author_facet Massachusetts Institute of Technology. Department of Chemical Engineering
Padhye, Nikhil
Parks, David Moore
Trout, Bernhardt L
Slocum, Alexander H
author_sort Padhye, Nikhil
collection MIT
description Polymer self-adhesion due to the interdiffusion of macromolecules has been an active area of research for several decades. Here, we report a new phenomenon of sub-Tg, solid-state, plasticity-induced bonding; where amorphous polymeric films were bonded together in a period of time on the order of a second in the solid-state at ambient temperatures, up to 60 K below their glass transition temperature (Tg), by subjecting them to active plastic deformation. Despite the glassy regime, the bulk plastic deformation triggered the requisite molecular mobility of the polymer chains, causing interpenetration across the interfaces held in contact. Quantitative levels of adhesion and the morphologies of the fractured interfaces validated the sub-Tg, plasticity-induced, molecular mobilization causing bonding. No-bonding outcomes (i) during the uniaxial compressive straining of films (a near-hydrostatic setting which strongly limits plastic flow) and (ii) between an ‘elastic’ and a ‘plastic’ film further established the explicit role of plastic deformation in this newly reported sub-Tg solid-state bonding.
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spelling mit-1721.1/1100982022-10-01T19:11:02Z A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers Padhye, Nikhil Parks, David Moore Trout, Bernhardt L Slocum, Alexander H Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Mechanical Engineering Padhye, Nikhil Parks, David Moore Trout, Bernhardt L Slocum, Alexander H Polymer self-adhesion due to the interdiffusion of macromolecules has been an active area of research for several decades. Here, we report a new phenomenon of sub-Tg, solid-state, plasticity-induced bonding; where amorphous polymeric films were bonded together in a period of time on the order of a second in the solid-state at ambient temperatures, up to 60 K below their glass transition temperature (Tg), by subjecting them to active plastic deformation. Despite the glassy regime, the bulk plastic deformation triggered the requisite molecular mobility of the polymer chains, causing interpenetration across the interfaces held in contact. Quantitative levels of adhesion and the morphologies of the fractured interfaces validated the sub-Tg, plasticity-induced, molecular mobilization causing bonding. No-bonding outcomes (i) during the uniaxial compressive straining of films (a near-hydrostatic setting which strongly limits plastic flow) and (ii) between an ‘elastic’ and a ‘plastic’ film further established the explicit role of plastic deformation in this newly reported sub-Tg solid-state bonding. Novartis Pharma Novartis-MIT Center for Continuous Manufacturing 2017-06-21T13:26:18Z 2017-06-21T13:26:18Z 2017-04 2016-10 Article http://purl.org/eprint/type/JournalArticle 2045-2322 http://hdl.handle.net/1721.1/110098 Padhye, Nikhil, David M. Parks, Bernhardt L. Trout, and Alexander H. Slocum. “A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers.” Scientific Reports 7 (April 20, 2017): 46405. https://orcid.org/0000-0001-5833-5178 https://orcid.org/0000-0002-9060-227X https://orcid.org/0000-0003-1417-9470 https://orcid.org/0000-0002-5048-4109 en_US http://dx.doi.org/10.1038/srep46405 Scientific Reports Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature
spellingShingle Padhye, Nikhil
Parks, David Moore
Trout, Bernhardt L
Slocum, Alexander H
A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers
title A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers
title_full A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers
title_fullStr A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers
title_full_unstemmed A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers
title_short A New Phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding in Polymers
title_sort new phenomenon sub tg solid state plasticity induced bonding in polymers
url http://hdl.handle.net/1721.1/110098
https://orcid.org/0000-0001-5833-5178
https://orcid.org/0000-0002-9060-227X
https://orcid.org/0000-0003-1417-9470
https://orcid.org/0000-0002-5048-4109
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