Mid-IR real-time monitoring of the carbocationic polymerization of isobutylene and styrene

The in-situ monitoring of the living carbocationic polymerization of isobutylene (IB) and styrene (St) with a fiber optic Attenuated Total Reflection (ATR) probe in the mid-IR "fingerprint" range is reported here for the first time. Monomer consumption was followed by the disappearance of...

Full description

Saved in:
Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 1998, Vol.40 (1), p.55-61
Main Authors: PUSKAS, J. E, LANZENDÖRFER, M. G, PATTERN, W. E
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fiber optics
Monitoring
Organic polymers
Physicochemistry of polymers
Polyisobutylene
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Styrenes
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The in-situ monitoring of the living carbocationic polymerization of isobutylene (IB) and styrene (St) with a fiber optic Attenuated Total Reflection (ATR) probe in the mid-IR "fingerprint" range is reported here for the first time. Monomer consumption was followed by the disappearance of the C=C stretching for both IB and St, and the C−H bending of the CH3-group in IB. The formation of polyisobutylene (PIB) was also monitored by tracing the asymmetrical doublet characteristic of C−H bending of the t-butyl groups of the PIB. Conversion measurements by conventional off-line gravimetry correlated well with the new technique.
ISSN:0170-0839
1436-2449
DOI:10.1007/s002890050223