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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
July 2025
Latest News
DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
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 | 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.