A compound having formula (I)
wherein R
1
is methyl or ethyl; R
2
is hydrogen, methyl, CH
2
C(NH
2
)(R
1
)(CH
2
OH) or R
2
groups combine to form a difunctional C
2
-C
6
alkyl group; and X is a difunctional group selected from the group consisting of C
2
-C
20
alkyl, C
5
-C
20
cycloalkyl, C
6
-C
10
aryl, C
8
-C
20
aryl alkyl, C
4
-C
20
heteroalkyl or C
10
-C
20
aryl heteroalkyl.
化合物的
化学式为(I),其中R1为甲基或乙基;R2为氢、甲基、CH2C(NH2)(R1)(CH2OH)或R2基团组合成双官能团C2-C6烷基基团;X为双官能团,选择自C2-C20烷基、C5-C20环烷基、C6-C10芳基、C8-C20芳基烷基、C4-C20杂原子烷基或C10-C20芳基杂原子烷基的群。