Macromonomer containing lactam structure and application thereof in preparation of polymer polyol
A technology of macromonomer and polyether polyol, which is applied in the field of polymer polyol preparation, can solve the problems of uneven appearance of polymer particles, incompatibility of performance, large usage, etc., achieve uniform appearance, reduce production and The effect of low operating cost and usage
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Embodiment 1
[0050]
[0051] step 1)
[0052] In a reactor with a capacity of 1 liter and equipped with a stirrer, a heater, a thermocouple, a condensing device with a water separator, an inlet device and an outlet device, under nitrogen protection, add: 8.4 g of aziridine and 416.4 g of (0.2082mol) polyether polyol 2020 (Wanhua Chemical Group Co., Ltd., functional group degree 2, hydroxyl value 56, number average molecular weight 2000) and 200g of toluene were mixed evenly, maintained at 110°C for 4 hours, and then cooled to room temperature.
[0053] Step 2)
[0054] Add 16.8g of 3,4-dimethylfuran-2,5-dione to the reaction solution in step 1) and raise the temperature to 80°C under stirring, react for 2 hours, and obtain 1# macromonomer containing lactam structure after cooling down solution.
[0055] pass figure 1 It can be seen that the macromonomer prepared in Example 1 has the desired lactam structure.
Embodiment 2
[0057]
[0058] step 1)
[0059] In a reactor with a capacity of 1 liter and equipped with a stirrer, a heater, a thermocouple, a condensing device with a water separator, an inlet device and an outlet device, add under nitrogen protection: 8.9 g of aziridine and 416.4 g (0.2082mol) polyether polyol 2020 (Wanhua Chemical Group Co., Ltd., functional group degree 2, hydroxyl value 56, number average molecular weight 2000) and 200g of toluene, mixed evenly, maintained at 120°C for 4h, and then cooled to room temperature.
[0060] Step 2)
[0061] Add 17.73 g of maleic anhydride to the reaction liquid in step 1) and heat up to 90° C. under stirring, react for 2 hours, and obtain 2# macromonomer solution containing lactam structure after cooling down.
[0062] pass figure 2 It can be seen that the macromonomer prepared in Example 2 has the desired lactam structure.
Embodiment 3
[0064]
[0065] step 1)
[0066] In a reactor with a capacity of 1 liter and equipped with a stirrer, a heater, a thermocouple, a condensing device with a water separator, an inlet device and an outlet device, add under nitrogen protection: 9.4g aziridine and 416.4g ( 0.2082mol) polyether polyol 2020 (Wanhua Chemical Group Co., Ltd., functional group degree 2, hydroxyl value 56, number average molecular weight 2000) and 200g of toluene, after mixing evenly, maintain 130°C for 4h, and then cool to room temperature.
[0067] Step 2)
[0068] Add 18.67g of maleic anhydride to the reaction liquid in step 1) and heat up to 100°C under stirring, react for 2 hours, and obtain 3# macromonomer solution containing lactam structure after cooling down.
[0069] pass figure 2 It can be seen that the macromonomer prepared in Example 3 has the desired lactam structure.
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