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Sulfonation of Poly(propylene) Films with Fuming Sulfuric Acid

✍ Scribed by Masashi Kaneko; Hisaya Sato

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
133 KB
Volume
206
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Summary: Sulfonation is one of the most commonly used methods for the surface modification of polymers. In this study, the sulfonation of poly(propylene) (PP) films with fuming sulfuric acid has been investigated with the focus on the surface reaction. Analysis of the sulfonated PP films by X‐ray photoelectron spectroscopy (XPS), attenuated total reflectance (ATR) infrared spectroscopy, and chemical modification demonstrated the formation of Cο£ΎC double bonds and sulfate groups in the sulfonation process. These results and a comparison with low‐density polyethylene (LDPE) films led us to propose a new sulfonation mechanism involving hydride abstraction and the formation of β‐sultones.

The here proposed mechanism of the sulfonation of poly(propylene) involves the formation of unstable β‐sultones.

magnified imageThe here proposed mechanism of the sulfonation of poly(propylene) involves the formation of unstable β‐sultones.

πŸ“œ SIMILAR VOLUMES

Study of sulfonation mechanism of low-de
Study of sulfonation mechanism of low-density polyethylene films with fuming sulfuric acid
✍ Masashi Kaneko; Satoshi Kumagai; Tatsuo Nakamura; Hisaya Sato πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 109 KB πŸ‘ 2 views

## Abstract Sulfonation of low‐density polyethylene (LDPE) films with fuming sulfuric acid was studied by X‐ray photoelectron spectroscopy (XPS) and attenuated total reflectance (ATR) infrared spectroscopy. The ATR spectra showed the formation of Cο£ΎC double bonds and multiple sulfur atom containing