Medical wheat protein film and preparation method thereof

The invention discloses a medical wheat protein film which is prepared by adding polyalcohol plasticizer and cosolvent into degreased wheat protein, and processed by the working procedures of dissolving, forming a film and fixed molding; and the obtained wheat protein film has the thickness of 0.1-5mm, takes on a transparent, semi-transparent or non-transparent state, and has the tensile strength of 0.1-12MPa. The invention also discloses a preparation method of the wheat protein film. The wheat protein film not only is soft and moderate in mechanical strength, but also has good water absorbing, water retaining and air permeability properties as well as good blood compatibility and biocompatibility; and furthermore, the medical wheat protein film has no immunogenicity, can be used for absorbing proper medicine solution for slow release of medicine, and also can be used as surgical dressing, a tissue isolating diaphragm or scaffold material of tissue engineering.

Biodegradable polyester containing phosphatidylcholine group and its preparation method

Surface lubricating modification process of medical high molecular material

Medical high molecular material sample is first soaked in 0.5-10 mol/L concentration hydrophilic monomer solution for 0.5-100 hr; then irradiated with 10-500 W power ultraviolet ray at 5-100 cm distance to initiate surface grafting of hydrophilic monomer for 5-250 min; and finally washed with 30-80 deg.c distilled water or deionized water to eliminate residual homopolymer on the surface of stovedat 30-100 deg.c for 1-48 hr with the grafting density of 0.05-25 mg/sq cm measured through weighing process.

表面润滑医用高分子材料的光偶联制备方法

... 表面润滑医用高分子材料的光偶联制备方法，其特点是将含光活性基团的不饱和单体与亲水性单体配成溶液，在引发剂存在下，加入带有搅拌器和温度计的反应釜中，于温度50～100℃反应4～24小时，获得亲水共聚物，将共聚物配成40～0.1％的水溶液，涂抹到医用高分子表面，置于功率为10～500瓦的紫外光下照射0.5～30分钟，照射距离5～100厘米，共聚物在紫外光作用下偶联到医用高分子材料表面上，经水洗、烘干，测得偶联密度为0.01～15mg/cm#+[2]。 ...

Optical coupling process for preparing medical high-molecular material with lubricating surface

An optical coupling process for lubricating the surface of medical high-molecular material includes such steps as preparing solution from the unsaturated monomer containing optically active group andhydrophilic monomer, adding it along with the trigger to reactor, reacting at 50-100 deg.C for 4-24 hr to obtain hydrophilic copolymer, preparing its aqueous solution, coating it on the surface of medical high-molecular material, ultraviolet radiating for 0.5-30 min, washing with water, and baking.

Surface lubricating modification process of medical high molecular material

Multi-arm star polyester/hyperbranched polyglycidyl ether and preparation method thereof

The invention discloses multi-arm star polyester/hyperbranched polyglycidyl ether which comprises biodegradable polyester and polyglycidyl ether, the composed molecular shape takes the shape of a star which comprises a core, a support arm and a hyperbranched part, wherein the core is a residual part after compounds containing at least three hydroxyls are reacted, the support arm is biodegradable polyester, the hyperbranched part is polyglycidyl ether and has a structural general formula as below, wherein R is hyperbranched polyglycidyl ether. The invention also discloses a preparation method of the multi-arm star polyester/hyperbranched polyglycidyl ether. The multi-arm star polyester/hyperbranched polyglycidyl ether not only has biodegradability, but also can satisfy the requirements of control release of different drugs, medical product materials and tissue engineering as the structure simultaneously contains a hydrophobic part and the hydrophilic hyperbranched part, especially a great ...