Transition metal compound, polymerization-initiator system comprising the same, and process for producing polymer
申请人:Uemura Makoto
公开号:US20070270521A1
公开(公告)日:2007-11-22
A transition metal compound represented by the formula, [(CpR
1
m
)(CO)
2
M
1
][M
2
(CO)
2
(CpR
2
n
)], wherein Cp is a cyclopentadienyl ring, R
1
and R
2
are independently of each other a hydrocarbyl group having 1 to 20 carbon atoms, and each of at least one R
1
and at least one R
2
is a hydrocarbyl group having 5 to 20 carbon atoms, m and n are independently of each other an integer of 1 to 5, and M
1
and M
2
are independently of each other a transition metal atom of the group 8 in the periodic table of elements; a polymerization-initiator system comprising said transition metal compound; and a process for producing a polymer in the presence of the polymerization-initiator system.
Design of initiators for living radical polymerization of methyl methacrylate mediated by ruthenium(II) complex
作者:Tsuyoshi Ando、Masami Kamigaito、Mitsuo Sawamoto
DOI:10.1016/s0040-4020(97)00972-1
日期:1997.11
initiators have been developed for livingradicalpolymerization of methylmethacrylate (MMA) mediated by ruthenium(II) complexes [e.g., RuCl2(PPh3)3; PhC6H5]. These initiators include chloromethanes, α-chloroesters, α-chloroketones, and α-bromoesters, among which CCl3COCH3, CHCl2COPh, and H(MMA)2-Br are the best to give polymers with controlledmolecularweights and verynarrow MWDs (). The wide variation
An object of the present invention is to provide a practical solid polymer electrolyte that exhibits excellent thermal characteristics, physical characteristics, and ionic conductivity, and in particular, to provide a completely solid electrolyte and a copolymer composition that functions as the substrate for producing such an electrolyte. A solid polymer electrolyte comprising an electrolyte salt, and a copolymer in which a block chain A containing a repeating unit represented by a formula (I) shown below,
a block chain B containing a repeating unit represented by a formula (II) shown below:
(wherein, R9 represents an aryl group), and a block chain C containing a repeating unit represented by a formula (III) shown below:
(wherein, R13 represents an aryl group or a heteroaryl group) are arranged in the sequence B, A, C.
An object of the present invention is to provide a practical solid polymer electrolyte that exhibits excellent thermal characteristics, physical characteristics, and ionic conductivity, and in particular, to provide a completely solid electrolyte and a copolymer composition that functions as the substrate for producing such an electrolyte. A solid polymer electrolyte comprising an electrolyte salt, and a copolymer in which a block chain A containing a repeating unit represented by a formula (I) shown below,
a block chain B containing a repeating unit represented by a formula (II) shown below:
(wherein, R
9
represents an aryl group), and a block chain C containing a repeating unit represented by a formula (III) shown below:
(wherein, R
13
represents an aryl group or a heteroaryl group) are arranged in the sequence B, A, C.