Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Influence of the process on phase separation induced by radical copolymerization of styrene and divinylbenzene in the presence of reactive polyurethane network precursors

Chenal, J M ; Colombini, Didier LU and Widmaier, J M (2006) In Journal of Applied Polymer Science 99(6). p.2989-2996
Abstract
Interpenetrating polymer systems based on crosslinked polyurethane (PU) and polystyrene (PS) were prepared at room temperature by a one-shot (in situ) method, starting from an initial homogeneous mixture of reagents via noninterfering mechanisms. Both polymerizations were performed either simultaneously or one after the other. True simultaneity at every stages of the process is not possible. Despite the difference in refractive index of the components, hazy or optically clear films were obtained, thus indicating various levels of phase separation, also confirmed by glass transition temperature (T-g) measurements. The results suggest that controlling the chemistry and process (crosslink density, composition, and time sequence of events) of... (More)
Interpenetrating polymer systems based on crosslinked polyurethane (PU) and polystyrene (PS) were prepared at room temperature by a one-shot (in situ) method, starting from an initial homogeneous mixture of reagents via noninterfering mechanisms. Both polymerizations were performed either simultaneously or one after the other. True simultaneity at every stages of the process is not possible. Despite the difference in refractive index of the components, hazy or optically clear films were obtained, thus indicating various levels of phase separation, also confirmed by glass transition temperature (T-g) measurements. The results suggest that controlling the chemistry and process (crosslink density, composition, and time sequence of events) of in situ interpenetrating network formation will give various morphologies, and hence properties, ranging from microphase separated materials to larger macrophase separated materials. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Applied Polymer Science
volume
99
issue
6
pages
2989 - 2996
publisher
John Wiley and Sons
external identifiers
  • wos:000235343500018
  • scopus:33644556163
ISSN
1097-4628
DOI
10.1002/app.23023
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
id
bd7a00eb-6d0d-4300-a3aa-e1aa987f53d1 (old id 156456)
date added to LUP
2016-04-01 12:10:56
date last changed
2021-06-29 03:39:15
@article{bd7a00eb-6d0d-4300-a3aa-e1aa987f53d1,
  abstract     = {Interpenetrating polymer systems based on crosslinked polyurethane (PU) and polystyrene (PS) were prepared at room temperature by a one-shot (in situ) method, starting from an initial homogeneous mixture of reagents via noninterfering mechanisms. Both polymerizations were performed either simultaneously or one after the other. True simultaneity at every stages of the process is not possible. Despite the difference in refractive index of the components, hazy or optically clear films were obtained, thus indicating various levels of phase separation, also confirmed by glass transition temperature (T-g) measurements. The results suggest that controlling the chemistry and process (crosslink density, composition, and time sequence of events) of in situ interpenetrating network formation will give various morphologies, and hence properties, ranging from microphase separated materials to larger macrophase separated materials.},
  author       = {Chenal, J M and Colombini, Didier and Widmaier, J M},
  issn         = {1097-4628},
  language     = {eng},
  number       = {6},
  pages        = {2989--2996},
  publisher    = {John Wiley and Sons},
  series       = {Journal of Applied Polymer Science},
  title        = {Influence of the process on phase separation induced by radical copolymerization of styrene and divinylbenzene in the presence of reactive polyurethane network precursors},
  url          = {http://dx.doi.org/10.1002/app.23023},
  doi          = {10.1002/app.23023},
  volume       = {99},
  year         = {2006},
}