Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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Control of Block Copolymer Microdomain: In-Situ and Real-Time SANS Studies of Polymerization-Induced Self-assembly of Block Copolymer Microdomain Structure

  • Koizumi, Satoshi (Advanced Science Research Center, Japan Atomic Energy Agency) ;
  • Yamauchi, Kazuhiro (Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University) ;
  • Hasegawa, Hirokazu (Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University) ;
  • Tanaka, Hirokazu (Advanced Science Research Center, Japan Atomic Energy Agency) ;
  • Motokawa, Ryuhei (Advanced Science Research Center, Japan Atomic Energy Agency) ;
  • Hashimoto, Takeji (Advanced Science Research Center, Japan Atomic Energy Agency)
  • Published : 2006.10.13
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Abstract

We investigated a simultaneous living anionic polymerization process of isoprene (I) and 4styrene-d_8$ (S) in $benzene-d_6$ as a solvent with sec-buthyllithium as an initiator into polyisoprene(PI)-block-poly($styrene-d_8$)(PS) and the polymerization-induced molecular self-assembling process. This process was observed in-situ by time-resolved small-angle neutron scattering (SANS) experiment. The SANS profiles measured exhibited three time regions, where (i) the selective growth of PI chains occurs; (ii) the living chain ends switch from isoprenyllithium to styryllithium, and (iii) the SANS exhibited the polymerization induced disorder-to-order transition and order-to-order transition.

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