The invention relates to a cross-linking monomer with at least one sulfur atom, representable by a structure of formula (I)
wherein the symbols have the following meaning:
L
1
is a linear, branched or cyclic, saturated or unsaturated, aliphatic or heteroaliphatic group with 2 to 10 carbon atoms; an aromatic or heteroaromatic group with 4 to 12 carbon atoms or a group with 6 to 14 carbon atoms, which comprises at least one saturated or unsaturated, aliphatic and/or heteroaliphatic residue and at least one aromatic and/or heteroaromatic residue, wherein the phosphorus atom is directly bonded with a carbon atom;
V
1
is a saturated or unsaturated, aliphatic or heteroaliphatic group with 2 to 50 carbon atoms; an aromatic or heteroaromatic group with 5 to 50 carbon atoms or a group with 6 to 50 carbon atoms, which comprises at least one saturated or unsaturated, aliphatic and/or heteroaliphatic residue and at least one aromatic and/or heteroaromatic residue;
X
1
is the same or different, O or NR
3
, each time it occurs;
R
1
is H or a hydrolyzable group;
R
2
is H or an alkyl residue with 1 to 4 carbon atoms;
R
3
is H or an aliphatic, heteroaliphatic, aromatic or heteroaromatic group with 1 to 6 carbon atoms, and
n is 2, 3, 4, 5 or 6,
wherein the sulfur atom in the structure according to formula (I) is separated from group X
1
by a maximum of 12 bonds, which group is spaced from the sulfur atom by the lowest number of bonds, wherein double bonds or triple bonds are counted as a single bond.
该发明涉及一种至少含有一个
硫原子的交联单体,其结构可用如下式(I)表示:其中符号具有以下含义:L1是具有2至10个碳原子的线性、支链或环状、饱和或不饱和的脂肪族或杂原子脂肪族基团;含有4至12个碳原子的芳香族或杂原子芳香族基团,或者包含至少一个饱和或不饱和的脂肪族和/或杂原子脂肪族残基以及至少一个芳香族和/或杂原子芳香族残基的6至14个碳原子的基团,其中
磷原子直接与碳原子键合;V1是具有2至50个碳原子的饱和或不饱和的脂肪族或杂原子脂肪族基团;含有5至50个碳原子的芳香族或杂原子芳香族基团,或者包含至少一个饱和或不饱和的脂肪族和/或杂原子脂肪族残基以及至少一个芳香族和/或杂原子芳香族残基的6至50个碳原子的基团;X1是O或NR3,每次出现时均相同或不同;R1是H或可
水解基团;R2是H或具有1至4个碳原子的烷基残基;R3是H或具有1至6个碳原子的脂肪族、杂原子脂肪族、芳香族或杂原子芳香族基团;n为2、3、4、5或6,其中根据式(I)中的结构,
硫原子与X1基团之间最多相隔12个键,该基团与
硫原子之间的键数最少,双键或三键计为单键。