Neutron Scattering Study on Dynamics of Small Molecules Stored in Cages of Polymer Crystal

聚合物晶体笼中小分子动力学的中子散射研究

• 批准号: 21550015
• 负责人: KANEKO Fumitoshi
• 金额: $ 3.16万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21550015/
• 关键词: 分子動力学; 中性子散乱; 高分子包接錯体; 共結晶; 中性子小角散乱; X線散乱; 拡散係数; SAXS・WAXS同時測定; シンジオタクチックポリスチレン; ゲスト交換; 小角・広角同時測定; 放射光実験; 高次構造; 包接錯体; ゲスト分子; 小角散乱; ケージ; 国際研究者交流; ドイツ

Syndiotactic polystyrene (sPS) forms co-crystals, where low-mass molecules are stored as guests in the crystal lattice of sPS. The guest exchange phenomenon in the sPS co-crystals were followed by time-resolved small-angle neutron scattering and time-resolved simultaneous small-angle and wide-angle X-ray scattering and also IR spectroscopy, which enabled to estimate the diffusion coefficients of guest molecules in the crystalline region of sPS co-crystals and clarified the changes in lattice and higher order structures. It has been also clarified that oligomeric compounds consisting of ethylene oxide repeat units can be introduced into sPS lattice as guests by guest exchange procedure.

联合性聚苯乙烯（SPS）形成共晶体，其中低质量分子被存储在SPS的晶格中。 The guest exchange phenomenon in the sPS co-crystals were followed by time-resolved small-angle neutron scattering and time-resolved simultaneous small-angle and wide-angle X-ray scattering and also IR spectroscopy, which enabled to estimate the diffusion coefficients of guest molecules in the crystalline region of sPS co-crystals and clarified the changes in lattice and higher order structures.还澄清说，可以通过访客交换程序将包括乙烷氧化物重复单元组成的寡聚化合物作为客人引入SPS晶格。

项目成果

Time-resolved SANS studies on guest exchange processes in co-crystals of syndiotactic polystyrene

• DOI: 10.1016/j.polymer.2013.04.050
• 发表时间: 2013-06-07
• 期刊: POLYMER
• 影响因子: 4.6
• 作者: Kaneko, Fumitoshi;Radulescu, Aurel;Ute, Koichi
• 通讯作者: Ute, Koichi

中性子小角散乱法によるシンジオタクチックポリスチレンの溶媒誘起結晶化とゲスト交換現象に関する研究

小角中子散射法研究间规聚苯乙烯溶剂诱导结晶及客体交换现象

• 发表时间: 2012
• 作者: 渡邉慶市;佐野晃平;松原世明;田地川浩人;金子文俊
• 通讯作者: 金子文俊

Complexation of Syndiotactic Polystyrene with Crown Ethers : 12-Crown-4, 15-Crown-5 and 18-Crown-6

间规聚苯乙烯与冠醚的络合：12-Crown-4、15-Crown-5 和 18-Crown-6

• 发表时间: 2011
• 期刊: Soft Materials
• 影响因子: 1.2
• 作者: S.Yamanaka;S.Nishihara;K.Nakata;K.Yamaguchi;et al;高橋栄一;H.Tachikawa;F.Kaneko
• 通讯作者: F.Kaneko

シンジオタクチックポリスチレンの微小空隙に包接された極性分子の誘電緩和挙動

间规聚苯乙烯微孔中极性分子的介电弛豫行为

• 发表时间: 2012
• 作者: 小林秀雄;浦川理;井上正志;金子文俊
• 通讯作者: 金子文俊

Structural Study on Guest Exchange Processes of Syndiotactic Polystyrene by Time-resolved Simultaneous SAXS and WAXS Measurements

通过时间分辨同步 SAXS 和 WAXS 测量研究间规聚苯乙烯的客体交换过程

• 发表时间: 2012
• 作者: N. Seto;K.Sasaki;F.Kaneko;S. Sakurai
• 通讯作者: S. Sakurai