Preparation method for biodegradable fluorescent polyester multipolymer

A biodegradable and copolymer technology, applied in the field of functional materials, can solve the problem of increasing white blood cells
CN101544749AInactive Publication Date: 2009-09-30JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2009-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method for a biodegradable fluorescent polyester copolymer, belonging to the field of functional materials. The method comprises the following steps: using 3,4-dihydroxy cinnamic acid as a main monomer, using PEG400, PEG1000, PEG2000, PEG4000 and PEG6000 with different molecular weights, lactic acid, p-hydroxybenzoic acid or lithocholic acid as functional monomers and using sodium acetate as a catalyzer and acetic anhydride as a solvent; and adopting a two-step melting polycondensation method to obtain a caffeic acid ester copolymer with controllable molecular weight, glass transition temperature, fluorescence intensity, degradation speed, and the like so that the caffeic acid ester copolymer can be used as a degradation material or a fluorescent probe and applied to the fields of organizational projects, biological medicines, environmental protection, and the like. The invention provides a simple convenient high-efficiency method for preparing the biodegradable copolymer which has fluorescent performance.
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Description

technical field

[0001] The invention discloses a preparation method of a biodegradable fluorescent polyester copolymer, which belongs to the field of functional materials. Background technique

[0002] With the development and application of new technologies, various new polymer materials have sprung up and have been widely used in various production departments and people's daily life. Although they have many advantages, with the increase of application time, more and more environmental problems have emerged. The annual plastic waste produced in the world is about 60% to 70% of its output. More than 70% of the raw materials used in the manufacture of polymer materials come from petroleum. It is estimated that the average oil consumption of 1kg of polymer materials is 3L. The annual production of 7 million tons of polymer material waste means that 2.1 billion liters of petroleum is wasted every year. Therefore, the ecological design and recycling of polymer materials is the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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