A method of reacting a toluenesulfonyl-terminated polyoxyethylene compound having the formula CH
3
—C
6
H
4
—SO
2
—(O—CH
2
—CH
2
)
n
—O—R
1
with an ammonium salt having the formula NR
2
4
X to form a compound having the formula X—CH
2
—CH
2
—(O—CH
2
—CH
2
)
n-1
—R
3
. The value n is a positive integer. X is a halogen, cyanide, cyanate, thiocyanate, or azide. R
1
is a terminating group. Each R
2
is hydrogen or an alkyl group. —R
3
is —O—R
1
or —X.
将具有以下公式的
甲苯磺酰基终止的聚氧
乙烯化合物
CH3—
C6H4—SO2—(O—
CH2— )n—O—R1 与具有以下公式的
铵盐 NR24X 反应,形成具有以下公式的化合物 X— — —(O— — )n-1—R3。其中 n 为正整数。X 是卤素、
氰基、
氰酸根、
硫氰酸根或
叠氮酸根。R1 是终止基团。每个 R2 是氢或烷基。—R3 是—O—R1 或—X。