تفاعل #831117

معادلة التفاعل

poly(p-hydroxystyrene)

tert-butyl monochloroacetate

K2CO3

→

tert-butyl p-vinylphenoxyacetate p-hydroxystyrene

المذيبات

acetone

ظروف التفاعل

المعالجة

1. 1
   أخرىobtained in the same manner
2. 2
   أخرىwas reacted
3. 3
   درجة الحرارةunder reflux
4. 4
   درجة الحرارةAfter cooling
5. 5
   ترشيحthe precipitate was filtered off
6. 6
   workup.ADDITIONthe filtrate was poured into H2O (1 l)
7. 7
   أخرىwas precipitated
8. 8
   ترشيحThe precipitate was filtered
9. 9
   غسيلwashed with H2O
10. 10
    أخرىdried under reduced pressure

الإجراء التجريبي

A suspension of poly(p-hydroxystyrene) (4.0 g) obtained in the same manner as described in Reference Example 1, (2), tert-butyl monochloroacetate (3.0 g) and anhydrous K2CO3 (2.8 g) in acetone (35 ml) was reacted with stirring for 2 hours under reflux. After cooling, the precipitate was filtered off, the filtrate was poured into H2O (1 l) and was precipitated. The precipitate was filtered, washed with H2O and dried under reduced pressure to give 5.2 g of poly(tert-butyl p-vinylphenoxyacetate/p-hydroxystyrene) as white powder having Mw 11000 (GPC with polystyrene calibration). The polymer was found to have tert-butyl p-vinylphenoxyacetate unit and p-hydroxystyrene unit in a molar ratio of ca. 1:1 based on 1HNMR.

المصدر