Amphiphilic macrocyclic polymer and preparation method
An amphiphilic and polymer technology, which is applied in the field of amphiphilic macrocyclic polymers and their preparation, can solve the problems of single chemical structure of side chains, limited number of side chains, no polymers found, etc., and achieve clear synthesis routes, The method is simple and the effect of high yield
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[0041] c-PEO-g-PS
[0042] 1. Preparation of 4-glycidyl-2,2,6,6-tetramethylpiperidine nitroxide radical (GTEMPO)
[0043] Add 340mL 50% (v / v) sodium hydroxide solution to a 1000mL three-necked flask, add 7g tetra-n-butylammonium hydrogensulfate (TBAHS) into the flask, keep an ice-water bath, so that the reaction temperature does not exceed 25°C. While stirring mechanically, 210mL of epichlorohydrin was added through the dropping funnel within 30min. After keeping the reaction in the ice-water bath for 2 hours, 86 g of 4-hydroxy-2,2,6,6-tetramethylpiperidine nitroxide was added in batches within 1 hour. After the reaction was carried out for 24 hours, the reaction mixture was poured into an ice-water mixture (1.5 L), and the aqueous phase was repeatedly extracted with ether until the aqueous layer turned pale yellow. The ether solutions extracted several times were combined and washed with anhydrous MgSO 4 After drying for 3 h, CaH 2 Let dry overnight. After diethyl ether ...
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