𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Role of Oxidation in the Migration Mechanism of Layered Silicate in Poly(propylene) Nanocomposites

✍ Scribed by Mauro Zammarano; Jeffrey W. Gilman; Marc Nyden; Eli M. Pearce; Menachem Lewin

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
130 KB
Volume
27
Category
Article
ISSN
1022-1336

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: Evidence of clay migration from the core to the surface of poly(propylene)/montmorillonite nanocomposites is provided. A three‐ to fivefold increase in the clay concentration of the surface is obtained during isothermal heating in oxidative atmosphere. The mechanism of migration is investigated by means of attenuated total reflectance Fourier transform infrared spectrometry. It is shown that oxygen plays a fundamental role in the migration mechanism.

ρ~Si~ versus c for the annealed samples.

magnified image__ρ__~Si~ versus c for the annealed samples.

📜 SIMILAR VOLUMES

Formation and Detection of Clay Network
Formation and Detection of Clay Network Structure in Poly(propylene)/Layered Silicate Nanocomposites
✍ Ágnes Ábrányi; László Százdi; Béla Pukánszky Jr.; G. Julius Vancsó; Béla Pukánsz 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 126 KB

## Abstract **Summary:** The study of the structure and the rheological properties of poly(propylene) (PP)/montmorillonite (MMT)/maleinated PP (MAPP) composites strongly suggests that a silicate network may form under certain conditions. Network formation could not be proven unambiguously with the

Molecular Dynamics Simulation of the Fra
Molecular Dynamics Simulation of the Fracture in Polymer-Exfoliated Layered Silicate Nanocomposites
✍ Mo Song; Lei Chen 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 297 KB

## Abstract **Summary:** The MD technique was used to investigate the fracture behavior in fully exfoliated layered silicate (nanoplatelet)‐polymer nanocomposites. MD results reveal that the addition of the nanoplatelets can improve the fracture strength of polymers. The interactions between the su

Role of the Oriented Attachment Mechanis
Role of the Oriented Attachment Mechanism in the Phase Transformation of Oxide Nanocrystals
✍ Caue Ribeiro; Cristiane Vila; José Milton Elias de Matos; Jefferson Bettini; Els 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 486 KB

## Abstract “Bottom‐up” methods to obtain nanocrystals usually result in metastable phases, even in processes carried out at room temperature or under soft annealing conditions. However, stable phases, often associated with anisotropic shapes, are obtained in only a few special cases. In this paper