Cargando…
Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement
Grafting terminally functionalized polypropylene (PP) to nanofillers provides well-defined PP-based nanocomposites plausibly featured with a physical cross-linkage structure. In this paper, a series of PP-grafted silica nanoparticles (PP-g-SiO(2)) were synthesized by varying the number of grafted ch...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432204/ https://www.ncbi.nlm.nih.gov/pubmed/30974576 http://dx.doi.org/10.3390/polym8080300 |
_version_ | 1783406080996409344 |
---|---|
author | Toyonaga, Masahito Chammingkwan, Patchanee Terano, Minoru Taniike, Toshiaki |
author_facet | Toyonaga, Masahito Chammingkwan, Patchanee Terano, Minoru Taniike, Toshiaki |
author_sort | Toyonaga, Masahito |
collection | PubMed |
description | Grafting terminally functionalized polypropylene (PP) to nanofillers provides well-defined PP-based nanocomposites plausibly featured with a physical cross-linkage structure. In this paper, a series of PP-grafted silica nanoparticles (PP-g-SiO(2)) were synthesized by varying the number of grafted chains per silica particle, and influences of the number and the molecular weight of grafted chains were studied on physical properties of PP/PP-g-SiO(2) nanocomposites. We found that only 20–30 chain/particle was sufficient to exploit benefits of the PP grafting for the nanoparticle dispersion, the nucleation, and the Young’s modulus. Meanwhile, the yield strength was sensitive to both of the number and the molecular weight of grafted PP: Grafting longer chains at a higher density led to greater reinforcement. |
format | Online Article Text |
id | pubmed-6432204 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64322042019-04-02 Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement Toyonaga, Masahito Chammingkwan, Patchanee Terano, Minoru Taniike, Toshiaki Polymers (Basel) Article Grafting terminally functionalized polypropylene (PP) to nanofillers provides well-defined PP-based nanocomposites plausibly featured with a physical cross-linkage structure. In this paper, a series of PP-grafted silica nanoparticles (PP-g-SiO(2)) were synthesized by varying the number of grafted chains per silica particle, and influences of the number and the molecular weight of grafted chains were studied on physical properties of PP/PP-g-SiO(2) nanocomposites. We found that only 20–30 chain/particle was sufficient to exploit benefits of the PP grafting for the nanoparticle dispersion, the nucleation, and the Young’s modulus. Meanwhile, the yield strength was sensitive to both of the number and the molecular weight of grafted PP: Grafting longer chains at a higher density led to greater reinforcement. MDPI 2016-08-12 /pmc/articles/PMC6432204/ /pubmed/30974576 http://dx.doi.org/10.3390/polym8080300 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Toyonaga, Masahito Chammingkwan, Patchanee Terano, Minoru Taniike, Toshiaki Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement |
title | Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement |
title_full | Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement |
title_fullStr | Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement |
title_full_unstemmed | Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement |
title_short | Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement |
title_sort | well-defined polypropylene/polypropylene-grafted silica nanocomposites: roles of number and molecular weight of grafted chains on mechanistic reinforcement |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432204/ https://www.ncbi.nlm.nih.gov/pubmed/30974576 http://dx.doi.org/10.3390/polym8080300 |
work_keys_str_mv | AT toyonagamasahito welldefinedpolypropylenepolypropylenegraftedsilicananocompositesrolesofnumberandmolecularweightofgraftedchainsonmechanisticreinforcement AT chammingkwanpatchanee welldefinedpolypropylenepolypropylenegraftedsilicananocompositesrolesofnumberandmolecularweightofgraftedchainsonmechanisticreinforcement AT teranominoru welldefinedpolypropylenepolypropylenegraftedsilicananocompositesrolesofnumberandmolecularweightofgraftedchainsonmechanisticreinforcement AT taniiketoshiaki welldefinedpolypropylenepolypropylenegraftedsilicananocompositesrolesofnumberandmolecularweightofgraftedchainsonmechanisticreinforcement |