Patent ID: 11905378
Assignee: SOOCHOW UNIVERSITY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method of preparing a high-grafting density cyclic comb shaped polymer, comprising the following steps:
(1) preparing a linear polyformate from a formate monomer as a starting material in a first solvent, in the presence of a RAFT reagent;
(2) converting the linear polyformate to a cyclic polyformate through a light-induced reaction under an inert gas atmosphere and in a second solvent;
(3) reacting the cyclic polyformate with a small molecule amine to obtain a functional cyclic polymer under the inert gas atmosphere and in a third solvent; and
(4) reacting the functional cyclic polymer with a linear azide polystyrene to obtain the high-grafting density cyclic comb-shaped polymer in the presence of pentamethyl-diethylenetriamine, copper, and a copper salt, under the inert gas atmosphere and in a fourth solvent.