Next Article in Journal
Conformational Properties of Active Semiflexible Polymers
Next Article in Special Issue
Enhanced Optoelectronic Properties of PFO/Fluorol 7GA Hybrid Light Emitting Diodes via Additions of TiO2 Nanoparticles
Previous Article in Journal
Fiber Reinforced Polymer Strengthening of Structures by Near-Surface Mounting Method
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Polymers 2016, 8(8), 300; doi:10.3390/polym8080300

Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement

School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Walter Remo Caseri
Received: 4 June 2016 / Revised: 22 July 2016 / Accepted: 9 August 2016 / Published: 12 August 2016
(This article belongs to the Special Issue Nanocomposites of Polymers and Inorganic Particles 2016)
View Full-Text   |   Download PDF [2911 KB, uploaded 12 August 2016]   |  

Abstract

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-SiO2) 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-SiO2 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. View Full-Text
Keywords: polypropylene; nanocomposite; grafting technique; polymer-grafted nanofiller; co-crystallization; physical cross-linkage; mechanical properties; tensile test; materials design polypropylene; nanocomposite; grafting technique; polymer-grafted nanofiller; co-crystallization; physical cross-linkage; mechanical properties; tensile test; materials design
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Toyonaga, M.; Chammingkwan, P.; Terano, M.; Taniike, T. Well-Defined Polypropylene/Polypropylene-Grafted Silica Nanocomposites: Roles of Number and Molecular Weight of Grafted Chains on Mechanistic Reinforcement. Polymers 2016, 8, 300.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top