WFRF:(Hult M.)
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Rheological behaviour during UV-curing of a star-branched polyester
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- Claesson, Hans (author)
- KTH,Polymerteknologi
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- Malmström, Eva (author)
- KTH,Polymerteknologi
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- Johansson, Mats K. G. (author)
- KTH,Polymerteknologi
- show more...
- Doyle, M. (author)
- Manson, J. A. E. (author)
- show less...
- (creator_code:org_t)
- 2002
- 2002
- English.
- In: Progress in organic coatings. - 0300-9440 .- 1873-331X. ; 44:1, s. 63-67
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Using a rheometer coupled with an UV-light generator, the viscoelastic behaviour during the fast cure of star-branched polyester is investigated. The 32 arm star polymers consist of a hyperbranched polyester core, Boltorn(TM) and linear grafts of poly(E-caprolactone) (degree of polymerisation: 20-52) with methacrylate end groups. The resins are crystalline and the melting points range from 34 to 50degreesC; films can be formed and cured below 80degreesC. The crossover of G' and G was used as the gel point. The time to reach the gel point, a few seconds, increases linearly with molecular weight.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
Keyword
- aliphatic polyester
- dendritic
- gel point
- powder coatings
- star polymer
- UV
- linear viscoelasticity
- aliphatic polyesters
- gel point
- polymers
- systems
- Chemistry
- Kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Claesson, Hans
- Malmström, Eva
- Johansson, Mats ...
- Hult, Anders
- Doyle, M.
- Manson, J. A. E.
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- ENGINEERING AND TECHNOLOGY
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- Royal Institute of Technology
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