Morphology of model three-component three-arm star-shaped copolymers - Details

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Abstract：

The　microdomain　structure　of　a　model　three-component,　three-arm,　star-shaped　copolymer　consisting　of　polystyrene　(PS),　poly(dimethylsiloxane)　(PDMS)　and　poly(tert-butyl　methacrylate)　(PTBMA),　each　of　them　having　nearly　the　same　weight　fraction,　was　investigated　by　means　of　differential　scanning　calorimetry　(d.s.c.),　transmission　electron　microscopy　(TEM)　and　small-angle　X-ray　scattering　(SAXS).　D.s.c.　results　exhibiting　the　glass　transition　of　PS　and　PTBMA　and　the　crystallization　and　melting　of　PDMS　strongly　suggest　the　microphase　separation　of　the　three　components　into　three　microdomains.　The　microdomain　structure　is　considered　to　be　extremely　complicated　because　the　chemical　junction　points　of　the　three　constituent　polymers　must　be　confined　on　the　lines　where　three　kinds　of　interfaces　meet.　TEM　and　SAXS　results　strongly　support　the　existence　of　a　very　regular　microdomain　structure　with　three-fold　symmetry.　Each　of　the　three　components　possibly　forms　a　three-dimensionally　continuous　network　domain　resulting　in　an　ordered　tricontinuous　microdomain　structure.　©　1997　Elsevier　Science　Ltd.

Keyword：

Block copolymer; Microdomain; Star copolymer

Author Community：

[ 1 ] [Okamoto, S.]Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan
[ 2 ] [Okamoto, S.]Dept. of Mat. Sci. and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466, Japan
[ 3 ] [Hasegawa, H.]Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan
[ 4 ] [Hashimoto, T.]Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan
[ 5 ] [Fujimoto, T.]Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
[ 6 ] [Zhang, H.]Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
[ 7 ] [Zhang, H.]11 Beijing University of Technology, Beijing 100029, China
[ 8 ] [Kazama, T.]Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
[ 9 ] [Takano, A.]Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan
[ 10 ] [Isono, Y.]Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940-21, Japan

Reprint Author's Address：

[Hashimoto, T.]Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-01, Japan

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Source ：

Polymer

ISSN： 0032-3861

Year： 1997

Issue： 21

Volume： 38

Page： 5275-5281

4 . 6 0 0

JCR@2022

ESI Discipline： CHEMISTRY;

JCR Journal Grade：1

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WoS CC Cited Count：

SCOPUS Cited Count： 89

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

Affiliated Colleges：

环境与生命学部

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