Journal
COMMUNICATIONS CHEMISTRY
Volume 3, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s42004-020-0335-9
Keywords
-
Categories
Funding
- Knut and Alice Wallenberg Foundation through Wallenberg Wood Science Center at KTH
- Royal Institute of Technology
- DESY strategic fund (DSF) Investigation of processes for spraying and spray-coating of hybrid cellulose-based nanostructures
Ask authors/readers for more resources
Photopolymerization is a key enabling technology offering spatial and temporal control to allow for future functional materials to be made to meet societal needs. However, gaining access to robust experimental techniques to describe the evolution of nanoscale morphology in photo-initiated polymeric systems has proven so far to be a challenging task. Here, we show that these physical transformations can be monitored and quantified at the nanoscale in situ and in real-time. It is demonstrated that the initial structural features of the liquid precursors significantly affect the final morphology and the physical properties of the resulting solid via the occurrence of local heterogeneities in the molecular mobility during the curing transformation. We have made visible how local physical arrestings in the liquid, associated with both cross-linking and vitrification, determine the length scale of the local heterogeneities forming upon curing, found to be in the 10-200nm range. Acomplete account of the structural evolution occurring during photopolymerisation is lacking. Here the physical changes occurring on the nanometer scale during photopolymerisation of acrylates are followed over time by FTIR, X-ray reflectometry, AFM, and GISAXS, offering insight into the mechanism by which initial composition influences the final morphology.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available