𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Melt Elongation of Polymer Nanocomposites: A Method for the Controlled Production of Dichroic Films

✍ Scribed by Daniel Schmid; Ulrich A. Handge; John P. Gann; Mingdi Yan; Walter Caseri

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
211 KB
Volume
293
Category
Article
ISSN
1438-7492

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A processing method based on stretching of molten polymer nanocomposites was applied to prepare dichroic films. First, dodecanethiol‐capped gold particles were embedded in low density polyethylene. The resulting isotropic films were stretched in the melt under uniaxial loading using an elongational rheometer. The melt elongation technique resulted in reproducible characteristics of the optical properties and can be directly transferred to an industrial scale. The organic coating of the metal particles plays an important role in the generation of the dichroism. A reactive surface (adsorbed perfluorophenyl azide) led to strongly agglomerated particles which obviously did not lead to dichroic films.

magnified image

πŸ“œ SIMILAR VOLUMES

A Facile Method for Controlling the Mole
A Facile Method for Controlling the Molecular Weight of Hyperbranched Light-Emitting Polymers
✍ Qingguo He; Hongmin Huang; Fenglian Bai; Yong Cao πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 122 KB

## Abstract **Summary:** Two series of hyperbranched conjugated polymers were synthesized via an A~3~ + B~2~ type Wittig reaction. The molecular weights of the polymers were successfully tuned by simply changing the feed ratio of the monomers. Polymers with higher molecular weights presented more e