中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (05): 516-520.DOI: 10.3724/SP.J.1095.2011.00422

• 研究论文 • 上一篇    下一篇

超临界二氧化碳中聚(丁二酸-丁二醇/乙二醇)酯(PBES)多孔聚合物的制备与表征

李静1,曹丽琴1,2*,王吉德1   

  1. (1.新疆大学石油天然气精细化工教育部（自治区）重点实验室 乌鲁木齐 830046;
    2.中国石油独山子石化公司研究院 独山子 833600)
  • 收稿日期:2010-07-20 修回日期:2010-10-15 出版日期:2011-05-10 发布日期:2011-05-10
  • 通讯作者: 曹丽琴，副教授; Tel/Fax:0991-8581018; E-mail:xjcaolq@sina.com; 研究方向：功能高分子材料与超临界流体技术及应用
  • 基金资助:
    新疆自治区自然科学基金(2009211B03)博士后科学基金（20100471674）资助项目

Preparation and characterization of porous poly (butylene succinate-co-ethylene succinate)s by supercritical carbon dioxide technique

LI Jing1, CAO Liqin1,2*, WANG Jide1   

  1. (1.Key Laboratory of Oil and Gas Fine Chemicals,Ministry of Education,
    Xinjiang University & Xinjiang Uygur Autonomous Region,Urumqi 830046;
    2.The Research Institute of Dushanzi Petrochemical Company, Dushanzi 833600)
  • Received:2010-07-20 Revised:2010-10-15 Published:2011-05-10 Online:2011-05-10
  • Contact: Ji-de Wang

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摘要：

在超临界二氧化碳(scCO2)条件下，制备了可生物降解性的聚(丁二酸-丁二醇/乙二醇)酯(PBES)多孔材料，研究了scCO2的压力、温度对多孔材料的结构形貌和结晶度的影响。 结果表明，材料的孔洞分布、结构形态和结晶度与处理样品的压力、温度关系密切；经过scCO2处理后材料的结晶度有所降低。 孔径均匀分布，为50~200 μm，131 ℃处理样品的孔隙率为55.63%。

关键词: 超临界二氧化碳, 可生物降解, 聚(丁二酸-丁二醇/乙二醇)酯, 多孔材料

Abstract:

Biodegradable porous aliphatic poly(butylene succinate-co-ethylene succinate)s(PBES) was prepared through a direct polycondensation method in supercritical carbon dioxide(scCO2). The effects of reaction pressure, temperatures and duration time of scCO2 on the foaming behaviors of PBES were investigated. The obtained porous PBES were characterized by scanning electron micrograph(SEM), X-ray diffraction(XRD). The results showed that the porosity can reach over 55% and the diameter of the pores was in the range 50~200 μm. The crystallinity of PBES was decreased after scCO2 treatment.

Key words: PBES, biodegradable, Supercritical carbon dioxide, porous materials

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