SYMMETRIC HYPERBRANCHED TYPE SILICONE-MODIFIED POLYMERIZABLE COMPOUND, AND ITS MODULARIZED PREPARATION METHOD
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20160039848A1
公开(公告)日:2016-02-11
A symmetric hyperbranched type silicone-modified polymerizable compound contains a compound represented by the following general formula (1). A hyperbranched type silicone-modified polymerizable compound has flexibility at the branched skeleton itself than the conventional ones, and reactivity of a polymerizable functional group is good and it is positionally and sterically symmetric, while it has a highly branched structure having siloxane chains.
[(R
A
R
B
)
2
CHOCH
2
]
2
CHOR
C
c
R
D
(1)
R
A
represents a monovalent linear, branched or cyclic siloxane chain; R
B
represents a divalent hydrocarbonylene methylene ether group represented by —CH
2
CR
b1
R
b2
(CR
b3
R
b4
)
n1
OCH
2
—, each of R
b1
, R
b2
, R
b3
and R
b4
may be the same or different from each other and represents a hydrogen atom or a linear, branched or cyclic hydrocarbon group having 1 to 10 carbon atoms which may be bonded to each other, “n1” represents an integer selected from 0 to 10; R
C
, a divalent linking group; “c”, 0 or 1; and R
D
, an unsaturated polymerizable functional group.
一种对称的超支化硅改性可聚合化合物,包含以下通式(1)所代表的化合物。超支化硅改性可聚合化合物具有比传统化合物更灵活的分支骨架,具有良好的聚合官能团反应性,并且在位置上和立体上对称,同时具有高度支化的硅氧烷链结构。
[(RARB)2CHOCH2]2CHORCcRD(1)
其中,RA代表单价线性、支化或环状硅氧烷链;RB代表由—CH2CRb1Rb2(CRb3Rb4)n1OCH2—表示的二价烃基亚甲基醚基团,其中,Rb1、Rb2、Rb3和Rb4中的每一个可以相同也可以不同,表示氢原子或具有1至10个碳原子的线性、支化或环状烃基,这些烃基可以相互连接,“n1”表示从0到10的整数;RC表示二价连接基团,“c”为0或1;RD表示不饱和聚合官能团。