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This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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Nuclear Science and Engineering
Fusion Science and Technology
Advanced reactors: Now comes the hard part
Designing a reactor is complicated but building one may be harder. Even companies that have had lots of practice haven’t always done it well. And all the power reactors in service today were built by companies that had years of experience in other kinds of big steam-electric power plants. In contrast, some of the creative new designs now moving toward commercialization come from start-ups that have never built anything at all. How should they prepare?
Kentaro Yamanaka, Keiji Nagai, Nobukatsu Nemoto, Kaori Nomura, Tomonori Shimoyama, Kei Tanji, Tomoya Tanji, Mitsuo Nakai, Takayoshi Norimatsu
Fusion Science and Technology | Volume 51 | Number 4 | May 2007 | Pages 665-672
Technical Paper | dx.doi.org/10.13182/FST07-A1461
Articles are hosted by Taylor and Francis Online.
This paper deals with a new foam material containing polysytrene and its oxirane derivative. A monomer, 4-vinylphenyloxirane (M1), was prepared from 4-chlorostyrene. Polystyrene-based copolymers using styrene and M1 were prepared by free radical copolymerization using azo-bis(isobutyronitrile) (AIBN) as an initiator. The solutions of the obtained polystyrene-based copolymers in 4-chlorotoluene were gelated by the addition of a cationic initiator, which caused crosslinking via ring-opening polymerization of the pendant cyclic moieties. SEM images of the dried gel show various foam structures. The formation mechanism of the micro- and nano-structure was explained from the view point of the affinity of the monomer unit and the solvent. The homopolymer of 4-vinyphenylolxirane showed the finest and most uniform structure.