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Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)

[Image: see text] Tailoring the polymer melt rheology and the chain relaxation dynamics permits easy handling of polymer processing and enables broader range of applications. Novel strategy to control the polymer melt rheology and the chain relaxation dynamics was devised. A simple process for molec...

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Autores principales: Seo, Youngwook P., Seo, Yongsok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644126/
https://www.ncbi.nlm.nih.gov/pubmed/31458288
http://dx.doi.org/10.1021/acsomega.8b02355
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author Seo, Youngwook P.
Seo, Yongsok
author_facet Seo, Youngwook P.
Seo, Yongsok
author_sort Seo, Youngwook P.
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description [Image: see text] Tailoring the polymer melt rheology and the chain relaxation dynamics permits easy handling of polymer processing and enables broader range of applications. Novel strategy to control the polymer melt rheology and the chain relaxation dynamics was devised. A simple process for molecular structural change in a polyamide (nylon 6) to easily generate a long-chain branching in a controllable manner without forming a network structure led to unusually large enhancements in the relaxation dynamics. The zero shear viscosity of the polyamide has increased more than 200 folds of linear chains viscosity, whereas the molar mass change was ca. 1.6 times. Storage modulus and the loss modulus at low frequency increased more than 10(4) and 10(3) times to those of neat polyamide without forming a network structure. The rheological properties of the polymer (nylon 6) melts can be finely tailored by this simple process to cover a broad range of applications.
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spelling pubmed-66441262019-08-27 Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6) Seo, Youngwook P. Seo, Yongsok ACS Omega [Image: see text] Tailoring the polymer melt rheology and the chain relaxation dynamics permits easy handling of polymer processing and enables broader range of applications. Novel strategy to control the polymer melt rheology and the chain relaxation dynamics was devised. A simple process for molecular structural change in a polyamide (nylon 6) to easily generate a long-chain branching in a controllable manner without forming a network structure led to unusually large enhancements in the relaxation dynamics. The zero shear viscosity of the polyamide has increased more than 200 folds of linear chains viscosity, whereas the molar mass change was ca. 1.6 times. Storage modulus and the loss modulus at low frequency increased more than 10(4) and 10(3) times to those of neat polyamide without forming a network structure. The rheological properties of the polymer (nylon 6) melts can be finely tailored by this simple process to cover a broad range of applications. American Chemical Society 2018-12-04 /pmc/articles/PMC6644126/ /pubmed/31458288 http://dx.doi.org/10.1021/acsomega.8b02355 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Seo, Youngwook P.
Seo, Yongsok
Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)
title Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)
title_full Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)
title_fullStr Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)
title_full_unstemmed Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)
title_short Effect of Molecular Structure Change on the Melt Rheological Properties of a Polyamide (Nylon 6)
title_sort effect of molecular structure change on the melt rheological properties of a polyamide (nylon 6)
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644126/
https://www.ncbi.nlm.nih.gov/pubmed/31458288
http://dx.doi.org/10.1021/acsomega.8b02355
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