Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer

SUN Xuefei; GAO Yongqiang; ZHAO Song; ZHANG Wen; WANG Zhi; WANG Xiaolin

doi:10.11949/j.issn.0438-1157.20180551

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Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer

更新时间：2025-12-10

- Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer
- CIESC Journal Issue 11, Pages: 4869-4878(2018)
- 作者机构：
  
  1. 化学工程联合国家重点实验室, 天津大学化工学院化学工程研究所, 天津市膜科学与海水淡化技术重点实验室,天津,300072
  2. 化学工程联合国家重点实验室, 清华大学化学工程系,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180551
  CLC： Q028.8
- Online First：05 November 2018，
  
  Published：05 November 2018
- 稿件说明：
移动端阅览
SUN Xuefei, GAO Yongqiang, ZHAO Song, et al. Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer[J]. CIESC Journal, 2018, (11): 4869-4878.
DOI：

SUN Xuefei, GAO Yongqiang, ZHAO Song, et al. Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer[J]. CIESC Journal, 2018, (11): 4869-4878. DOI： 10.11949/j.issn.0438-1157.20180551.

摘要

表面接枝杀菌材料是提高膜抗菌和抗污染性能的常用手段。胍基化合物具有杀菌广谱、易制备、低毒等优点，已受到研究者的广泛关注。通过聚乙烯亚胺和盐酸胍的熔融聚合反应制备胍基聚合物（聚乙烯亚胺胍盐酸盐，PEIGH），并利用聚多巴胺中间层将其接枝到聚砜超滤膜表面。结果表明，PEIGH具有良好的抗菌性能，经其改性后的超滤膜润湿性能提高，纯水通量提高了11%~98%，牛血清蛋白截留率由96.6%提高到98.3%以上。抗菌性能、抗有机物污染和抗生物污染性能均得到明显改善。

Abstract

Surface grafting bactericidal materials are commonly used methods to improve the antibacterial and anti-pollution properties of membranes. Guanidine compounds have received a lot of attentions due to their efficient and broad-spectrum antibacterial properties

easy preparation and low toxicity to the mammalian cell. Herein

a guanidine based polymer

namely PEIGH

was prepared through melt phase polycondensation of polyethyleneimine and guanidine hydrochloride

then used for ultrafiltration membrane surface modification with the assist of polydopamine. The results show that the synthesized PEIGH possesses good antibacterial property. Compared to the unmodified membranes

the membranes modified by PEIGH have better wettability. The permeation flux increases by 11%-98% and rejection for bovine serum albumin raises from 96.6% to 98.3% above. Antibacterial

anti-organic and anti-biobial properties have been significantly improved.

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