𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Photoinitiated Cationic Polymerization of Substituted Vinylcyclopropanes

✍ Scribed by Aniss Abdo Al-Doaiss; Wolfgang Günther; Elisabeth Klemm; Dietmar Stadermann

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

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: The photoinitiated cationic polymerization of 1‐cyclopropyl‐l‐phenyl‐ethylene, 1‐cyclopropyl‐l‐(p‐methoxyphenyl)ethylene and 1‐cyclopropyl‐l‐(p‐fluorophenyl)ethylene at ambient temperatures in bulk and in solution was investigated using (η^5^‐2,4‐cyclopentadiene‐l‐yl)[l,2,3,4,5,6‐η] (l‐(methylethyl) benzene)iron(I) hexafluorophosphate (Irgacure 261, I‐1) and ditolyliodonium hexafluorophosphate (I‐2). In contrast to our results in the polymerization of 2‐cyclopropyl‐4‐methylene‐l,3‐dioxolanes, partial ring‐opening of the cyclopropane ring could be detected. A volume shrinkage of about 11% was found.
magnified image

📜 SIMILAR VOLUMES

Photoinitiated cationic polymerization o
Photoinitiated cationic polymerization of epoxides
✍ Christian Decker; Trieu Nguyen Thi Viet; Hong Pham Thi 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 243 KB

## Abstract Difunctional epoxy monomers have been polymerized cationically by UV irradiation in the presence of a triarylsulfonium photoinitiator. The curing process was followed quantitatively by monitoring the disappearance of the epoxy group by infrared spectroscopy and the insolubilization and

Photoinitiated cationic polymerization o
Photoinitiated cationic polymerization of epoxy alcohol monomers
✍ James V. Crivello; Saoshi Liu 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 267 KB 👁 2 views

A series of epoxy alcohols were prepared by simple, straightforward methods. These compounds were very reactive monomers that polymerized rapidly on UV irradiation in the presence of cationic photoinitiators. The kinetics of the cationic photopolymerization of these monomers were studied with diaryl

Visible and long-wavelength photoinitiat
Visible and long-wavelength photoinitiated cationic polymerization
✍ James V. Crivello; Marco Sangermano 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 291 KB

A new system for efficiently carrying out cationic photopolymerizations with visible and long-wavelength UV light is described. This system is based on the principle that certain onium salt cationic photoinitiators can be reduced by free radicals produced by the hydrogen abstraction reactions of pho