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    • 1. 发明申请
    • 架橋性含フッ素芳香族プレポリマー及びその用途
    • 可交联含荧光的芳族聚丙烯酰胺及其用途
    • WO2006137327A1
    • 2006-12-28
    • PCT/JP2006/312056
    • 2006-06-15
    • 旭硝子株式会社江里口 武伊藤 昌宏鶴岡 薫石橋 雄一郎
    • 江里口 武伊藤 昌宏鶴岡 薫石橋 雄一郎
    • C08G65/40C07C43/29C08F212/06C08F299/02C08G65/48C08L71/10
    • C08F212/32C08F212/14C08K5/03C08L25/18
    • Disclosed is a crosslinkable fluorine-containing aromatic prepolymer which enables to obtain a cured product having high transparency, low relative dielectric constant, high heat resistance, low birefringence and high flexibility. Also disclosed is use of such a prepolymer. Specifically disclosed is a crosslinkable fluorine-containing aromatic prepolymer obtained by condensing a compound (Y-1) having a polymerizable double bond (A) and a phenolic hydroxyl group and/or a compound (Y-2) having a polymerizable double bond (A) and a fluorine atom-substituted aromatic ring, a fluorine-containing aromatic compound (B) represented by the formula (1) below and a compound (C) having 3 or more phenolic hydroxyl groups which are not present in a same aromatic ring in the presence of a dehydrofluorinating agent. This crosslinkable fluorine-containing aromatic prepolymer has a polymerizable double bond (A) and an ether bond, while having a number-average molecular weight of from 1 × 10 3 to 5 × 10 5 . (1) (In the formula, n represents an integer of 0-3; a and b independently represent 0 or an integer of 1-3; and Rf 1 and Rf 2 respectively represent a fluorine-containing alkyl group having 8 or less carbon atoms.)
    • 公开了一种可交联的含氟芳族预聚物,其能够获得具有高透明度,低相对介电常数,高耐热性,低双折射性和高柔性的固化产物。 还公开了这种预聚物的用途。 具体公开了通过将具有可聚合双键(A)的化合物(Y-1)和酚羟基和/或具有可聚合双键的化合物(Y-2)缩合得到的可交联的含氟芳族预聚物 )和氟原子取代的芳香环,下述式(1)表示的含氟芳香族化合物(B)和具有3个以上酚醛羟基的化合物(C),其不存在于相同的芳香环中 存在脱氟化氢剂。 该交联性含氟芳香族预聚物具有聚合性双键(A)和醚键,数均分子量为1×10 3〜5×10 5, / SUP>。 (1)(式中,n表示0〜3的整数,a和b分别表示0或1-3的整数,Rf 1和Rf 2 >分别表示碳原子数为8以下的含氟烷基。)