The present invention relates to a crosslinkable monomer having at least one sulfur atom which can be represented by the structure of formula (I), wherein the symbols have the following meanings: L 1 has 2 to 10 carbon atoms A linear, branched or cyclic, saturated or unsaturated, aliphatic or heteroaliphatic group； an aromatic or heteroaromatic group having from 4 to 12 carbon atoms, or at least one saturated or unsaturated, A group having 6 to 14 carbon atoms comprising an aliphatic and / or heteroaliphatic residue and at least one aromatic and / or heteroaromatic residue, wherein the phosphorus atom is directly attached to the carbon atom V 1 is a saturated or unsaturated, aliphatic or heteroaliphatic group having 2 to 50 carbon atoms； an aromatic or heteroaromatic group having 5 to 50 carbon atoms, or less A group having 6-50 carbon atoms, including 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 when present, respectively, O or NR 3 ； R 1 is H or a hydrolyzable group； R 2 is H or an alkyl group having 1 to 4 carbon atoms R 3 is H or an aliphatic, heteroaliphatic, aromatic or heteroaromatic group having 1 to 6 carbon atoms, and n is 2, 3, 4, 5 or 6； The sulfur atom in the structure according to (I) is separated from the group X 1 separated by a minimum number of bonds from the sulfur atom via a maximum of 12 bonds, in which case the double or triple bond is Counted as a single bond.本発明は、式（Ｉ）の構造により表すことができる少なくとも１つの硫黄原子を有する架橋性モノマーに関し、式中、記号は次の意味を有する：Ｌ1は、２～１０の炭素原子を有する線状、分枝状または環状の、飽和または不飽和の、脂肪族またはヘテロ脂肪族基；４～１２の炭素原子を有する芳香族またはヘテロ芳香族基、または少なくとも１つの飽和または不飽和の、脂肪族および／またはヘテロ脂肪族残基と、少なくとも１つの芳香族および／またはヘテロ芳香族残基とを含む６～１４の炭素原子を有する基であり、この場合、リン原子は炭素原子に直接結合されている；Ｖ1は、２～５０の炭素原子を有する飽和または不飽和の、脂肪族またはヘテロ脂肪族基；５～５０の炭素原子を有する芳香族またはヘテロ芳香族基、または少なくとも１つの飽和または不飽和の、脂肪族および／またはヘテロ脂肪族残基と、少なくとも１つの芳香族および／またはヘテロ芳香族残基とを含む６～５０の炭素原子を有する基であり；Ｘ1は、それぞれ存在する場合に同じまたは異なりＯまたはＮＲ3であり；Ｒ1は、Ｈまたは加水分解可能な基であり
