Abstract:
The present disclosure provides a brush polymer, including: a linear polymer main chain; and brush structural side chains, including: a hydrophobic molecular branch, and a hydrophilic molecular branch and/or an anti-biofilm /or an anti-microbial molecular branch, wherein the linear polymer main chain is conjugated to the side chains by covalent bonds formed between a hydroxyl group and a reactive functional group, wherein the reactive functional group includes: isocyanate, carboxyl, or epoxy. The present disclosure also provides a medical application of the brush polymer.
Abstract:
The present invention provides a process for preparing a porous bioresorbable material having interconnected pores. A bioresorbable polymer and a low molecular weight oligomer are dissolved in an organic solvent to form a bioresorbable polymer solution. The bioresorbable polymer has a molecular weight greater than 20,000 and the oligomer has a molecular weight of 200 to 4000. The bioresorbable polymer solution is then contacted with a coagulant to form a porous bioresorbable material.
Abstract:
A biodegradable copolymer with a core block comprising bioresorbable hydrophobic polyester segment and from 3 to 10 shell blocks comprising hydrophilic polyethylene glycol segment. The hydrophobic polyester segment and each of the hydrophilic polyethylene glycol segments are linked by a urethane linkage. A polymeric micelle composition containing the copolymer is also provided. The copolymer forms micelles when the concentration of the copolymer in a dispersing medium reaches or exceeds the critical micelle concentration. The micelles possess good drug and bioactive agent delivery characteristics and are suitable for use in drug delivery or cosmetic applications.
Abstract:
An aliphatic polyester polymer compositions and preparation method thereof. The invention provides a bioresorbable aliphatic polyester copolymer, comprising the reaction product of a first polyester, a second polyester, and a coupling agent. Specifically, the first polyester and second polyester have the same repeat units, but different weight average molecular weights. Methods for preparing the aliphatic polyester copolymer are provided, in which the first polyester reacts with the second polyester in the presence of the coupling agent, undergoing copolymerization.
Abstract:
A polymer composition including a polymer having a hydroxyl group and a histidine or a histidine derivative grafted to the polymer having a hydroxyl group. A polymer material is also provided, including a polymer composition which includes a polymer having a hydroxyl group, and a histidine or a histidine derivative grafted to the polymer having a hydroxyl group.
Abstract:
A medical dressing is provided. The medical dressing includes a first and a second woven layers respectively having a fiber of polyurethane or a yarn of polyurethane; and a plurality of linear support portions woven between the first and second woven layers.