Preparation method of poly (carbonate ester-ether) trihydric alcohol
A technology of trihydric alcohols and carbonates, applied in the field of polymers, can solve problems such as difficult insertion of carbon dioxide or epoxy monomers, low content of carbonate units, long reaction induction period, etc.
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Embodiment 1
[0053] Preparation of Rare Earth Doped Y-DMC
[0054] 0.78g (0.004mol) YCl 3 and 11.42 g (0.084 mol) ZnCl 2 Dissolve in a mixed solution formed by 60ml deionized water and 30ml tert-butanol, heat the formed solution to 50°C and keep the temperature constant for 20min, then add 1.32g (0.004 mol) analytically pure K 3 [Co(CN) 6 ] and 20ml of deionized water, add dropwise for 45 minutes, keep the reaction constant at 50°C, stir for 1 hour to obtain a suspension; centrifuge the obtained suspension for 10 minutes with a centrifuge (5000rpm), and pour out the separated clear liquid , the sediment was successively treated with 60ml of 50°C TBA and H 2 The mixed solution of O was pulped and washed 5 times, and finally washed once with TBA pulp, TBA and H 2 TBA and H in the mixed solution of O 2 The volume ratio of O was 30 / 30, 40 / 20, 50 / 10, 60 / 0 respectively, the stirring speed during the washing process was 5000 rpm, the centrifugation time was 10 min, and then the obtained sed...
Embodiment 2
[0056] Preparation of Rare Earth Doped Nd-DMC
[0057] 0.1g (0.004mol) Nd(NO 3 ) 3and 11.42 g (0.084 mol) ZnCl 2 Dissolve in a mixed solution formed by 60ml deionized water and 30ml tert-butanol, heat the formed solution to 50°C and keep the temperature constant for 20min, then add 1.32g (0.004 mol) analytically pure K 3 [Co(CN) 6 ] and 20ml of deionized water, add dropwise for 45 minutes, keep the reaction constant at 50°C, stir for 1 hour to obtain a suspension; centrifuge the obtained suspension for 10 minutes with a centrifuge (5000rpm), and pour out the separated clear liquid , the sediment was successively treated with 60ml of 50°C TBA and H 2 The mixed solution of O was pulped and washed 5 times, and finally washed once with TBA pulp, TBA and H 2 TBA and H in the mixed solution of O 2 The volume ratio of O was 30 / 30, 40 / 20, 50 / 10, 60 / 0 respectively, the stirring speed during the washing process was 5000 rpm, the centrifugation time was 10 min, and then the obtain...
Embodiment 3
[0059] Preparation of Rare Earth Doped La-DMC
[0060] 0.98g (0.004mol) La(Cl 3 CCOO) 3 and 11.42 g (0.084 mol) ZnCl 2 Dissolve in a mixed solution formed by 60ml deionized water and 30ml tert-butanol, heat the formed solution to 50°C and keep the temperature constant for 20min, then add 1.32g (0.004 mol) analytically pure K 3 [Co(CN) 6 ] and 20ml of deionized water, add dropwise for 45 minutes, keep the reaction constant at 50°C, stir for 1 hour to obtain a suspension; centrifuge the obtained suspension for 10 minutes with a centrifuge (5000rpm), and pour out the separated clear liquid , the sediment was successively treated with 60ml of 50°C TBA and H 2 The mixed solution of O was pulped and washed 5 times, and finally washed once with TBA pulp, TBA and H 2 TBA and H in the mixed solution of O 2 The volume ratio of O was 30 / 30, 40 / 20, 50 / 10, 60 / 0, respectively, the stirring speed during washing was 300 rpm, the centrifugation time was 10 min, and then the obtained sed...
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