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2012 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]
In this work surface initiated ring-opening polymerization (SI-ROP) of ɛ-caprolactone on cellulose model surfaces was investigated using the quartz crystal microbalance (QCM). The polymerization was performed with the monomer, ɛ-caprolactone, in bulk with an organic catalyst, 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), at room temperature with two different catalyst concentrations (0.5 mol% and 1 mol%). Initiation was done directly from the hydroxyl groups on the cellulose surface without any modification. A gold surface, which cannot initiate polymerization, was used as a reference surface which was connected in serial to the cellulose surface. This study shows that QCM is a viable technique to monitor SI-ROP of ɛ-caprolactone from cellulose surfaces. Grafting polymers from cellulose fibres/fibrils/whiskers has been an interesting way of increasing the compatibility between fibres/fibrils/whiskers and different matrices in biocomposites, and the QCM could therefore be an important tool to study and optimize the grafting of polymers, such as polycaprolactone (PCL), on cellulose surfaces.
National Category
Polymer Chemistry
Identifiers
urn:nbn:se:kth:diva-92616 (URN)
Conference
ACS 243rd American Chemical Society National Meeting
Note
QC 20130531
2012-04-042012-04-042024-03-18Bibliographically approved