Effects of thermal annealing on the viscoelastic properties and morphology of bimodal hard/soft latex blends
(2005) In Journal of Polymer Science. Part B, Polymer Physics 43(17). p.2289-2306- Abstract
- The effects of thermal annealing on the viscoelastic properties and morphology of films prepared from bimodal latex blends containing equal weight fractions of soft and hard latex particles with controlled sizes were investigated. The thermal and viscoelastic properties of as-dried and annealed samples were investigated with differential scanning calorimetry and dynamic mechanical analysis (DMA). Throughout the thermal annealing, the latex blend morphologies were also followed with atomic force microscopy and transmission electron microscopy (TEM). A particulate morphology, consisting of hard particles evenly dispersed in a continuous soft phase, was observed in the TEM micrographs of the as-dried latex blends and resulted in an... (More)
- The effects of thermal annealing on the viscoelastic properties and morphology of films prepared from bimodal latex blends containing equal weight fractions of soft and hard latex particles with controlled sizes were investigated. The thermal and viscoelastic properties of as-dried and annealed samples were investigated with differential scanning calorimetry and dynamic mechanical analysis (DMA). Throughout the thermal annealing, the latex blend morphologies were also followed with atomic force microscopy and transmission electron microscopy (TEM). A particulate morphology, consisting of hard particles evenly dispersed in a continuous soft phase, was observed in the TEM micrographs of the as-dried latex blends and resulted in an enhancement of the mechanical film properties at temperatures between the a relaxations of the soft and hard phases in the DMA thermograms. As soon as the thermal annealing involved temperatures higher than the glass-transition temperature of the hard phase, the hard particles progressively lost their initial spherical shape and formed a more or less continuous phase in the latex blends. This induced coalescence of the hard particles was confirmed by the association of the experimental viscoelastic data with theoretical predictions, based on self-consistent mechanical models, which were performed by the consideration of either a particulate or cocontinuous morphology for the bimodal latex blends. (c) 2005 Wiley Periodicals, Inc. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/152526
- author
- Colombini, Didier LU ; Hassander, Helen LU ; Karlsson, Ola LU and Maurer, Frans LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Polymer Science. Part B, Polymer Physics
- volume
- 43
- issue
- 17
- pages
- 2289 - 2306
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000231370000004
- scopus:26944472075
- ISSN
- 0887-6266
- DOI
- 10.1002/polb.20461
- 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), Department of Chemistry (011001220)
- id
- 7adadd5d-3a96-45d2-8f7c-4f0be5a3868c (old id 152526)
- date added to LUP
- 2016-04-01 17:04:41
- date last changed
- 2022-01-29 00:11:58
@article{7adadd5d-3a96-45d2-8f7c-4f0be5a3868c,
abstract = {{The effects of thermal annealing on the viscoelastic properties and morphology of films prepared from bimodal latex blends containing equal weight fractions of soft and hard latex particles with controlled sizes were investigated. The thermal and viscoelastic properties of as-dried and annealed samples were investigated with differential scanning calorimetry and dynamic mechanical analysis (DMA). Throughout the thermal annealing, the latex blend morphologies were also followed with atomic force microscopy and transmission electron microscopy (TEM). A particulate morphology, consisting of hard particles evenly dispersed in a continuous soft phase, was observed in the TEM micrographs of the as-dried latex blends and resulted in an enhancement of the mechanical film properties at temperatures between the a relaxations of the soft and hard phases in the DMA thermograms. As soon as the thermal annealing involved temperatures higher than the glass-transition temperature of the hard phase, the hard particles progressively lost their initial spherical shape and formed a more or less continuous phase in the latex blends. This induced coalescence of the hard particles was confirmed by the association of the experimental viscoelastic data with theoretical predictions, based on self-consistent mechanical models, which were performed by the consideration of either a particulate or cocontinuous morphology for the bimodal latex blends. (c) 2005 Wiley Periodicals, Inc.}},
author = {{Colombini, Didier and Hassander, Helen and Karlsson, Ola and Maurer, Frans}},
issn = {{0887-6266}},
language = {{eng}},
number = {{17}},
pages = {{2289--2306}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Polymer Science. Part B, Polymer Physics}},
title = {{Effects of thermal annealing on the viscoelastic properties and morphology of bimodal hard/soft latex blends}},
url = {{http://dx.doi.org/10.1002/polb.20461}},
doi = {{10.1002/polb.20461}},
volume = {{43}},
year = {{2005}},
}