✦ LIBER ✦

Preparation of Polystyrene/Clay Nanocomposites by Free-Radical Polymerization in Dispersion

✍ Scribed by Nagi Greesh; Patrice C. Hartmann; Ronald D. Sanderson

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 780 KB
Volume: 294
Category: Article
ISSN: 1438-7492
DOI: 10.1002/mame.200900129

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Fully exfoliated PS/clay nanocomposites were prepared via FRP in dispersion. Na‐MMT clay was pre‐modified using MPTMS before being used in a dispersion polymerization process. The objective of this study was to determine the impact of the clay concentrations on the monomer conversion, the polymer molecular weight, and the morphology and thermal stability of the nanocomposites prepared via dispersion polymerization. DLS and SEM revealed that the particle size decreased and became more uniformly distributed with increasing clay loading. XRD and TEM revealed that nanocomposites at low clay loading yielded exfoliated structures, while intercalated structures were obtained at higher clay loading.

magnified image

📜 SIMILAR VOLUMES

Preparation and characterization of poly

Preparation and characterization of polystyrene–clay nanocomposites by free-radical polymerization

✍ Chen-Rui Tseng; Jeng-Yue Wu; Hsin-Yi Lee; Feng-Chih Chang 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 420 KB 👁 2 views

Preparation of tailor-made polystyrene n

Preparation of tailor-made polystyrene nanocomposite with mixed clay-anchored and free chains via atom transfer radical polymerization

✍ Hossein Roghani-Mamaqani; Vahid Haddadi-Asl; Mohammad Najafi; Mehdi Salami-Kalaj 📂 Article 📅 2010 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 443 KB 👁 2 views

Multiphase Polymer Dispersions and Nanoc

Multiphase Polymer Dispersions and Nanocomposites by Catalytic/Free Radical Emulsion Polymerization

✍ Ludmila Kolb; Ralf Thomann; Stefan Mecking 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 204 KB

## Abstract **Summary:** Free radical emulsion polymerization of styrene (S) or butyl acrylate (BA) in the presence of latices of linear polyethylene (PE) prepared by catalytic emulsion polymerization affords colloidally stable multiphase latices. Coagulation of a PE/PS latex affords nanocomposites

Poly(methyl methacrylate)/clay nanocompo

Poly(methyl methacrylate)/clay nanocomposites by photoinitiated free radical polymerization using intercalated monomer

✍ Ayhan Oral; Mehmet Atilla Tasdelen; Adem Levent Demirel; Yusuf Yagci 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 515 KB

A series of poly(methyl methacrylate)/montmorillonite (PMMA/MMT) nanocomposite were prepared by successfully dispersing the inorganic nanolayers of MMT clay in an organic PMMA matrix via in situ photoinitiated free radical polymerization. Methyl methacrylate monomer was first intercalated into the i

Preparation of polyacrylate-clay nanocom

Preparation of polyacrylate-clay nanocomposites by in-situ polymerization and heterocoagulation

✍ Yijin Xu; William J. Brittain 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 905 KB

Preparation of Polystyrene Particles by

Preparation of Polystyrene Particles by Dispersion Polymerization in an Ionic Liquid

✍ Hideto Minami; Kazuhiro Yoshida; Masayoshi Okubo 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 247 KB

## Abstract Submicron‐sized monodisperse polystyrene (PS) particles were successfully prepared by dispersion polymerization of styrene in an ionic liquid, __N__,__N__‐diethyl‐__N__‐methyl‐__N__‐(2‐methoxyethyl)ammonium bis(trifluoromethanesulfonyl)imide ([DEME][TFSI]) at 70 °C with poly(vinyl pyrro