STUDY ON THE RELATIONSHIP OF MICROSTRUCTURE AND BLOOD COMPATIBILITY OF MULTIBLOCK POLYET HER-ESTER BLENDS

LI Xue-fen; KE Yu-cai; WANG Shen-guo; CHEN Chuan-fu; LI Zhi-fen

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STUDY ON THE RELATIONSHIP OF MICROSTRUCTURE AND BLOOD COMPATIBILITY OF MULTIBLOCK POLYET HER-ESTER BLENDS

Research Article | 更新时间：2021-03-19

- STUDY ON THE RELATIONSHIP OF MICROSTRUCTURE AND BLOOD COMPATIBILITY OF MULTIBLOCK POLYET HER-ESTER BLENDS
- Acta Polymerica Sinica Issue 3, Pages: 277-282(1990)
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- Published：20 June 1990，
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LI Xue-fen, KE Yu-cai, WANG Shen-guo, CHEN Chuan-fu, LI Zhi-fen. STUDY ON THE RELATIONSHIP OF MICROSTRUCTURE AND BLOOD COMPATIBILITY OF MULTIBLOCK POLYET HER-ESTER BLENDS. [J]. Acta Polymerica Sinica (3):277-282(1990)
DOI：

LI Xue-fen, KE Yu-cai, WANG Shen-guo, CHEN Chuan-fu, LI Zhi-fen. STUDY ON THE RELATIONSHIP OF MICROSTRUCTURE AND BLOOD COMPATIBILITY OF MULTIBLOCK POLYET HER-ESTER BLENDS. [J]. Acta Polymerica Sinica (3):277-282(1990) DOI：

摘要

本工作合成了两种性质不同的聚醚-酯多嵌段共聚物

一种是以聚对苯二甲酸乙二酯为硬链段

聚乙二醇(PEGT)为软链段的亲水性多嵌段共聚物

另一种是以聚对苯二甲酸乙二酯为硬链段

聚四亚甲基醚二醇(PTMGT)为软链段的疏水性多嵌段共聚物。将两种共聚物以一定的比例共混

制备多嵌段聚醚-酯共混物。改变共混物的组成

研究其微相结构与血液相容性的关系。采用动态力学谱(VES)、示差扫描量热(DSC)、透射电镜(TEM)和扫描电镜(SEM)等测定共混物的微观结构

采用微球柱法评价共混物的血液相容性。实验结果表明:材料的微观非均相结构及亲水平衡是决定血液相容性的重要因素。

Abstract

Two kinds of multiblok poly (ether-ester) copolymers with different properties have been synthesized. One of them consisted of poly (ethylene terephthalate) as hard segment and poly-(ethylene glycol) (PEGT)

as hydrophilic soft segment while

another consisted of poly(ethy-lene terephthalate) as hard segment and poly (tetramethylene glycol) (PTMGT) as soft segment

which is a relatively hydrophobic one.Relationship between the microstructure and blood ooknpatibility has been observed by changing the composition of blends.M icrophase separated structure of blends has been determi-ned by means of VES.DSC

SEM and TEM. Blood compatiobility of the blends was evaluated by column beads method. The experimental results indicate that microphase separated structure and hydrophilic-hydrophobic balance of materials are important factors which affect the compa-tibility of these materials with blood.

关键词

多嵌段聚醚-酯共混物微相结构血液相容性

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