Effects of thermodynamic and spatial constraints on dynamics of block copolymers
Effects of thermodynamic and spatial constraints on dynamics of block copolymers
批准号:
21350063
负责人:
WATANABE Hiroshi
金额:
$11.48万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2011
中文摘要
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英文摘要
Dielectric relaxation was examined for microdomain-forming block copolymer systems composed of polystyrene(S) and polyisoprene(I), the latter having the type-A dipoles parallel along the chain backbone. The slow relaxation behavior detected end-to-end fluctuation of the I chains. The behavior of guest homo-PI chains mixed in I domains of the SIS triblock copolymer indicated that the chain dynamics is governed by the osmotic constraint(allowing no density fluctuation) to become self-similar. The behavior of dipole-inverted SIIS triblock and its precursor SI diblock copolymers suggested that the I block of SIS in spherical/cylindrical I domains exhibits either loop-type of pseudo-bridge-type dynamics according to its end-to-end distance.
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DOI:
10.1021/ma102596b
发表时间:
2011-02
期刊:
Bulletin of the American Physical Society
影响因子:
--
作者:
[H. Watanabe;Quan Chen;Yohji Kawasaki;Yumi Matsumiya;Tadashi Inoue;O. Urakawa]
通讯作者:
H. Watanabe;Quan Chen;Yohji Kawasaki;Yumi Matsumiya;Tadashi Inoue;O. Urakawa
Rheological and Dielectric Behavior of Polyisoprene under Pressurized Carbon Dioxide
加压二氧化碳下聚异戊二烯的流变和介电行为
DOI:
--
发表时间:
2010
期刊:
J. Soc. Rheol. Japan
影响因子:
--
作者:
[A. Uno, Y. Matsumiya, Y. Masubuchi, and H. Watanabe]
通讯作者:
and H. Watanabe
DOI:
10.1016/j.polymer.2011.03.044
发表时间:
2011-05-26
期刊:
POLYMER
影响因子:
4.6
作者:
[Rakkapao, Natthida, Vao-soongnern, Visit, Watanabe, Hiroshi]
通讯作者:
Watanabe, Hiroshi
Entanglement dynamics inmiscible polymer blends
不混溶聚合物共混物的缠结动力学
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[Iwamoto, Hajime ; Niimi, Kahoru ; Haino, Takeharu ; Fukazawa Yoshimasa, H. Watanabe]
通讯作者:
H. Watanabe
A theoretical analysis of rheo-dielectric response of type-A polymer chains under steady shear and LAOS
稳态剪切和LAOS下A型聚合物链流变介电响应的理论分析
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[村野耕太, 上松正弘, 黒川良介, 杉山賢次, 平尾明, H.Watanabe]
通讯作者:
H.Watanabe
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