Adhesion Dynamics for Cellulose Nano-Composites
2009 (English)In: ACS applied Materials & Interfaces, ISSN 1944-8252, 2098-2103 p.Article in journal (Refereed) Published
The efficiency of poly(ε-caprolactone) (PCL) as a matrix polymer for cellulose nano-composites has been investigated at the macromolecular contact level using atomic force microscopy (AFM) in colloidal probe configuration. Model cellulose micro-spheres grafted with PCL were prepared via ring-opening polymerization (ROP). Force measurements between the functionalized particles revealed the adhesion to be highly dependent on contact time due to a diffusion controlled mechanism. Moreover, an increase of the temperature to 60 °C (close to Tm for the PCL-graft) greatly enhanced the adhesion at the polymer-polymer interface demonstrating the importance of entanglements in the annealing of composite materials.
Place, publisher, year, edition, pages
2009. 2098-2103 p.
atomic force microscopy, cellulose, surface forces, adhesion, colloidal probe, nano-composites, ring-opening polymerization, surface grafting, poly(ε-caprolactone)
IdentifiersURN: urn:nbn:se:kth:diva-11001DOI: 10.1021/am900381tISI: 000271105000002ScopusID: 2-s2.0-79955835800OAI: oai:DiVA.org:kth-11001DiVA: diva2:233867
QC 201007302009-09-032009-09-032010-12-06Bibliographically approved