Patent ID: 11912802
Assignee: SOUTHWEST PETROLEUM UNIVERSITY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. A method for preparing said supramolecular star-shaped polymer with β-CD as a core according to claim 1, comprising the following steps in sequence:
S1: preparing a β-cyclodextrin-modified branched monomer F-β-CD, provided in its procedures as follows:
S11: making β-cyclodextrin react with p-toluenesulfonyl chloride by means of anhydrous pyridine as a solvent to prepare all-6-position sulfonylated β-cyclodextrin Ts-β-CD;
S12: making the all-6-position sulfonated β-cyclodextrin react with ethylenediamine by means of methanol as a solvent to prepare all-6-position ethylenediamine-substituted β-cyclodextrin EDA-β-CD having high reactivity; and
S13: making the all-6-position ethylenediamine substituted β-cyclodextrin react with maleic anhydride by means of dimethyl sulfoxide as a solvent to give the target product, β-cyclodextrin-modified branched monomer F-β-CD; and
S2: preparing a supramolecular star-shaped polymer with β-CD as a core, provided in its procedures as follows:
S21: adding acrylamide, acrylic acid and surface active macromolecular monomers to distilled water to give a solution, adjusting the solution's pH to about 7 with 10% NaOH solution; then adding hydrophobic monomers and a surfactant, sodium dodecyl sulfate into the solution to give a resultant solution, and stirring the resultant solution until it becomes clear and transparent; next adding the β-cyclodextrin modified branched monomer F-β-CD into the resultant solution to give a still resultant solution, finally aerating the still resultant solution with nitrogen for more than 15 min to give a de-oxygenated system; and
S22: adding a photoinitiator to the de-oxygenated system to give a solution, then placing the solution to react under a photoinitiation device for 3˜5 h at a reaction temperature of 10˜30° C., so as to obtain a white colloid, that is, the supramolecular star-shaped polymer with β-CD as a core.