含羧基酚酞聚芳醚酮的制备及中空纤维超滤膜性能研究

钱赠旭; 赵继永; 朱颖; 王志鹏

doi:10.11777/j.issn1000-3304.2025.25215

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含羧基酚酞聚芳醚酮的制备及中空纤维超滤膜性能研究

研究论文 | 更新时间：2026-01-16

- 含羧基酚酞聚芳醚酮的制备及中空纤维超滤膜性能研究
- Preparation of Phenolphthalein Poly(aryl ether ketone) Containing Carboxyl Group and the Property of Hollow Fiber Ultrafiltration Membranes
- 高分子学报 2026年57卷第1期页码：190-199
- 作者机构：
  
  1.中国科学院大连化学物理研究所能源材料研究部DNL22 大连 116023
  2.浙江帕尔科新材料有限公司衢州 324000
- 作者简介：
  
  E-mail: zhuying@paek.onaliyun.com
  okko@dicp.ac.cn
- 基金信息：
  
  山东省自然科学基金(基金号 ZR2022LFG002);江苏省重点研发计划产业前瞻与关键核心技术项目(BE2022054-4)
- DOI：10.11777/j.issn1000-3304.2025.25215
  中图分类号：
- CSTR：32057.14.GFZXB.2025.7507
- 收稿：2025-09-09，
  
  录用：2025-11-04，
  
  网络出版：2026-01-06，
  
  纸质出版：2026-01-20
- 稿件说明：
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钱赠旭, 赵继永, 朱颖, 王志鹏. 含羧基酚酞聚芳醚酮的制备及中空纤维超滤膜性能研究. 高分子学报, 2026, 57(1), 190-199.

Qian, Z. X.; Zhao, J. Y.; Zhu, Y.; Wang, Z. P. Preparation of phenolphthalein poly(aryl ether ketone) containing carboxyl group and the property of hollow fiber ultrafiltration membranes. Acta Polymerica Sinica (in Chinese), 2026, 57(1), 190-199.
钱赠旭, 赵继永, 朱颖, 王志鹏. 含羧基酚酞聚芳醚酮的制备及中空纤维超滤膜性能研究. 高分子学报, 2026, 57(1), 190-199. DOI： 10.11777/j.issn1000-3304.2025.25215. CSTR： 32057.14.GFZXB.2025.7507.

Qian, Z. X.; Zhao, J. Y.; Zhu, Y.; Wang, Z. P. Preparation of phenolphthalein poly(aryl ether ketone) containing carboxyl group and the property of hollow fiber ultrafiltration membranes. Acta Polymerica Sinica (in Chinese), 2026, 57(1), 190-199. DOI： 10.11777/j.issn1000-3304.2025.25215. CSTR： 32057.14.GFZXB.2025.7507.

摘要

无定形聚芳醚酮(PAEK)由于其良好的有机溶剂溶解性、成膜性能、优异的透气性和优异的机械性能，在分离膜领域发挥着越来越重要的作用. 然而，其应用受到疏水性的限制. 本工作通过调整酚酞(PHT)和酚酞啉(PPL)在三元共聚中的摩尔比，合成了具有不同羧基含量的PAEK (PPL-PHT)共聚物，采用同轴湿法纺丝制备了PPL-PHT中空纤维超滤膜. 通过红外光谱和核磁氢谱对共聚物进行结构表征，示差扫描量热法和热重分析测试其热性能. 通过扫描电子显微镜、水接触角测试和万能材料试验机对纤维的形态、亲水性及力学性能进行测试. 采用牛血清白蛋白(BSA)和腐植酸(HA)作为抗污性能测试污染物. 结果表明，成功合成了PPL-PHT共聚物，其羧基含量可控，耐热性良好，可满足在分离膜领域的需求. 随着共聚物中羧基含量的增加，纤维膜的拉伸强度、断裂伸长率、亲水性和抗污性能逐渐提高. 当PPL与PHT的摩尔比为50:50时，纤维膜对BSA表现出99.2%的截留率和53.2%的通量恢复率，对HA表现出97.5%的截留率和94.2%的通量恢复率. 这为分离领域的工业生产带来了希望.

Abstract

Amorphous poly(aryl ether ketone) (PAEK) is increasingly vital in the separation membrane field owing to its excellent organic solvent solubility

film-forming properties

outstanding gas permeability

and superior mechanical performance. However

its application is limited by hydrophobicity. In this study

PAEK (PPL-PHT) copolymers with varying carboxyl group contents were synthesized by adjusting the molar ratio of phenolphthalein (PHT) to phenolphthaleinline (PPL) in a ternary copolymerization. PPL-PHT hollow fiber ultrafiltration membranes were prepared by coaxial wet spinning. The copolymers were structurally characterized using Fourier-transform infrared (FTIR) and proton nuclear magnetic resonance (

H-NMR) spectroscopy. Their thermal properties were investigated using differential scanning calorimetry and thermogravimetric analysis. The fiber morphology

surface hydrophilicity

and mechanical properties were examined using scanning electron microscopy

water contact angle measurements

and universal testing machines. The antifouling performance was tested using bovine serum albumin (BSA) and humic acid (HA) as test media. The results indicate the successful synthesis of PPL-PHT copolymers with tunable carboxyl content and excellent thermal stability

meeting the requirements for separation membranes. With increasing carboxyl content

the fiber membranes exhibited progressively enhanced tensile strength

elongation at break

hydrophilicity

and fouling resistance. When the molar ratio of PPL to PHT was 50:50

the fiber membrane exhibited a rejection rate of 99.2% for bovine serum albumin while maintaining a flux recovery rate of 53.2%. For HA

the rejection rate was 97.5%

and the flu

x recovery rate was 94.2%. These results are promising for industrial applications in separation processes.

关键词

Keywords

references

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