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Polysebacic acid 1, 3-propylene glycol ester-block-polysuccinic acid butanediol block polyester and preparation method and use thereof

A technology of polybutylene succinate block and polybutylene succinate, which is applied in the field of polymer materials, can solve problems such as patent publications that have not yet been found, and achieve easy control, improved degradation rate, and easy operation simple effect

Inactive Publication Date: 2013-09-18
天津市食品加工工程中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • Polysebacic acid 1, 3-propylene glycol ester-block-polysuccinic acid butanediol block polyester and preparation method and use thereof
  • Polysebacic acid 1, 3-propylene glycol ester-block-polysuccinic acid butanediol block polyester and preparation method and use thereof
  • Polysebacic acid 1, 3-propylene glycol ester-block-polysuccinic acid butanediol block polyester and preparation method and use thereof

Examples

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Embodiment 1

[0045] A kind of poly 1,3-propylene glycol sebacate-block-polybutylene succinate block polyester, its general formula is as follows:

[0046] , the molecular weight range is 10000-50000.

[0047] As mentioned above, the preparation method of poly-1,3-propylene sebacate (PPS)-block-polybutylene succinate (PBS) block polyester (PPS-block-PBS), the steps are as follows:

[0048] (1) Preparation of PBS prepolymer: Weigh 11.8g (0.1mol) of succinic acid and 9.9g (0.11mol) of butanediol respectively, add them to a 250mL three-necked round-bottomed flask, and inject N 2 , the flow rate is 0.05m 3 / h, raise the temperature to 160°C, after the monomer is completely melted, carry out the constant temperature stirring esterification reaction for 1h, after the end of the esterification reaction (generally control the collection amount of water generated during the collection reaction to reach 90% of the theoretical value, it is considered esterification Reaction ends), obtains PBS prep...

Embodiment 2

[0058] A kind of poly 1,3-propylene glycol sebacate-block-polybutylene succinate block polyester, its general formula is as follows:

[0059] , the molecular weight range is 10000-50000.

[0060] As mentioned above, the preparation method of poly-1,3-propylene sebacate (PPS)-block-polybutylene succinate (PBS) block polyester (PPS-block-PBS), the steps are as follows:

[0061] (1) Preparation of PBS prepolymer: Weigh 11.8g (0.1mol) of succinic acid and 10.8g (0.12mol) of butanediol respectively, add them to a 250mL three-necked round-bottomed flask, and inject N 2 , the flow rate is 0.08m 3 / h, the temperature is raised to 160°C, after the monomer is completely melted, carry out a constant temperature stirring esterification reaction for 2 hours, after the end of the esterification reaction (generally control the collection amount of water generated during the collection reaction to reach 90% of the theoretical value, it is considered esterification Reaction ends), obtains ...

Embodiment 3

[0071] A kind of poly 1,3-propylene glycol sebacate-block-polybutylene succinate block polyester, its general formula is as follows:

[0072] , the molecular weight range is 10000-50000.

[0073] As mentioned above, the preparation method of poly-1,3-propylene sebacate (PPS)-block-polybutylene succinate (PBS) block polyester (PPS-block-PBS), the steps are as follows:

[0074] (1) Preparation of PBS prepolymer: Weigh 11.8g (0.1mol) of succinic acid and 11.7g (0.13mol) of butanediol, respectively, into a 250mL three-necked round-bottomed flask, and pass through N 2 , the flow rate is 0.1m 3 After the temperature is raised to 160°C until the monomer is completely melted, the esterification reaction is carried out with constant temperature stirring for 3 hours. The chemical reaction ends), obtains the PBS prepolymer;

[0075] The general formula of PBS prepolymer is as follows:

[0076] The molecular weight ranges from 1000 to 10000.

[0077] (2) Preparation of PPS prepol...

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Abstract

The invention relates to polysebacic acid 1, 3-propylene glycol ester-block-polysuccinic acid butanediol block polyester, wherein the general formula is shown in the specification, the molecular weight is in a range from 10000 to 50000. The molecular weight of the polyester provided by the invention is in the range from 10000 to 50000, the thermodynamic property of the polyester is equivalent to that of PBS (Polybutylene Succinate), the degradation performance is remarkably improved, the melting point is greater than 100 DEG C, the thermal stability is better, and the processing space is wider, so that the polyester can be used in the field of high molecular materials such as food package, agricultural plastic mulching films and medical sutures, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a poly(1,3-propylene sebacate) (PPS)-block-polybutylene succinate (PBS) block polyester (PPS-block-PBS ) and its preparation method and use. Background technique [0002] In recent years, with the improvement of people's awareness of environmental protection, it has become a mainstream trend to replace non-biodegradable materials with biodegradable materials. Most of the environmental protection materials and packaging container materials have been replaced by new biodegradable materials, especially in a In sex products, biodegradable materials are more widely used. In the field of some cutting-edge new medical materials, biodegradable materials also have great application potential. [0003] Aliphatic polyesters are a class of biodegradable materials prepared by synthetic processes, among which, butylene succinate (PBS) is a recognized biodegradable material with excel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/16C08G63/78C08L67/02
Inventor 王昌禄康宗华李贞景叶锋王玉荣陈勉华李风娟何良年周庆礼
Owner 天津市食品加工工程中心
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