Method for preparing degradable polyester based on 10-undecenoic acid and vanillic acid

A technology for degrading polyester and carbenoic acid, applied in the field of renewable resource utilization and green synthesis, can solve problems such as hindering the application of renewable resources, complicated separation process, long reaction time, etc., achieving easy structure and function, and wide source of raw materials. , good thermal stability
CN103467726BInactive Publication Date: 2015-09-09NANKAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANKAI UNIV
Publication Date
2015-09-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a preparation method for degradable polyester from 10-undecenoic acid and vanillic acid. According to the invention, plant oil-based unsaturated fatty acid and vanillic acid are used as raw materials, n-butyl titanate is used as a catalyst, and bulk polymerization is realized under the conditions of a high temperature and high vacuum. The method comprises the following steps: 1) preparing 11,11'-(ethyl-1,2-disulfur)bishendecene-1-ol from 10-undecenoic acid; 2) preparing dimethyl vanillate from methyl vanillate; and 3) preparing degradable polyester from 11,11'-(ethyl-1,2-disulfur)bishendecene-1-ol and dimethyl vanillate. The invention has the following advantages: the raw materials are easily available and cheap, and production cost is low; synthetic process for polyester is simple, easy to operate, green and environment-friendly, has high yield and is favorable for industrial production; a prepared polyester material has good heat stability, can easily realize diversification of structures and functions, has performance comparable with polyester prepared from the raw material petroleum and can be produced on a large scale.
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Description

technical field

[0001] The invention relates to the technical field of renewable resource utilization and green synthesis, in particular to a method for preparing degradable polyester based on 10-undecylenic acid and vanillic acid. Background technique

[0002] Polyester is a general term for polymers obtained by polycondensation of polyols and polybasic acids. It is a class of engineering plastics with excellent performance and a wide range of uses. It can be made into fibers and films. It is widely used in packaging, electronic appliances, medical care, hygiene, Construction, automobile and other fields. However, polyester materials based on petrochemicals are typical white polluting polymer materials, which cannot be degraded under natural conditions, and the increasing polyester waste will inevitably bring serious pollution to the environment. Moreover, with the depletion of energy and resources, especially after the oil crisis in the 1970s, people realized the danger o...

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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