View in EDS

Polyamide membranes with structural homogeneity regulated by alkyl chain engineering for precise molecular sieving.

Saved in:
Bibliographic Details
Title: Polyamide membranes with structural homogeneity regulated by alkyl chain engineering for precise molecular sieving.
Authors: Yang, Hui1,2 (AUTHOR), Wang, Dan1,2 (AUTHOR), Gu, Shuyun1,2 (AUTHOR), Zhou, Linlong1,2 (AUTHOR), Li, Siyao1,2 (AUTHOR) siyaoli@ecust.edu.cn, Xu, Zhi1,2 (AUTHOR) zhixu@ecust.edu.cn
Source: AIChE Journal. May2026, Vol. 72 Issue 5, p1-10. 10p.
Subjects: Polyamide membranes, Alkyl group, Nanofilms, Membrane separation, Polymerization, Chemical purification, Nanofiltration
Abstract: Precise sieving of structurally similar solutes in organic solvents is crucial for chemical industries such as pharmaceutical synthesis and petroleum refining. However, it remains technically challenging due to their similar physicochemical properties. Achieving this with organic solvent nanofiltration (OSN) requires membranes with narrow pore‐size distribution and tailored surface chemistry. Herein, we report an additive‐free strategy to prepare ultrathin, structurally homogeneous polyamide (PA) nanofilms via alkyl chain engineering during interfacial polymerization (IP). Alkyl chains synergistically regulate the diffusion kinetics and the reaction process: they enable rapid, uniform amine supply while introducing steric hindrance that moderates polycondensation. This dual regulation yields a structurally homogeneous PA layer with sub‐nanometer pores. The optimized membrane shows a sharp rejection curve and effectively separates antibiotics, demonstrating promise for pharmaceutical purification. This work advances the understanding of diffusion‐reaction synergy in IP and offers a facile strategy for precision separation membranes. [ABSTRACT FROM AUTHOR]
Copyright of AIChE Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 192785663
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Polyamide membranes with structural homogeneity regulated by alkyl chain engineering for precise molecular sieving.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Hui%22">Yang, Hui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Dan%22">Wang, Dan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gu%2C+Shuyun%22">Gu, Shuyun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Linlong%22">Zhou, Linlong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Siyao%22">Li, Siyao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> siyaoli@ecust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Xu%2C+Zhi%22">Xu, Zhi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhixu@ecust.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22AIChE+Journal%22">AIChE Journal</searchLink>. May2026, Vol. 72 Issue 5, p1-10. 10p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Polyamide+membranes%22">Polyamide membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Alkyl+group%22">Alkyl group</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofilms%22">Nanofilms</searchLink><br /><searchLink fieldCode="DE" term="%22Membrane+separation%22">Membrane separation</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+purification%22">Chemical purification</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofiltration%22">Nanofiltration</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Precise sieving of structurally similar solutes in organic solvents is crucial for chemical industries such as pharmaceutical synthesis and petroleum refining. However, it remains technically challenging due to their similar physicochemical properties. Achieving this with organic solvent nanofiltration (OSN) requires membranes with narrow pore‐size distribution and tailored surface chemistry. Herein, we report an additive‐free strategy to prepare ultrathin, structurally homogeneous polyamide (PA) nanofilms via alkyl chain engineering during interfacial polymerization (IP). Alkyl chains synergistically regulate the diffusion kinetics and the reaction process: they enable rapid, uniform amine supply while introducing steric hindrance that moderates polycondensation. This dual regulation yields a structurally homogeneous PA layer with sub‐nanometer pores. The optimized membrane shows a sharp rejection curve and effectively separates antibiotics, demonstrating promise for pharmaceutical purification. This work advances the understanding of diffusion‐reaction synergy in IP and offers a facile strategy for precision separation membranes. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of AIChE Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192785663
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/aic.70250
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 1
    Subjects:
      – SubjectFull: Polyamide membranes
        Type: general
      – SubjectFull: Alkyl group
        Type: general
      – SubjectFull: Nanofilms
        Type: general
      – SubjectFull: Membrane separation
        Type: general
      – SubjectFull: Polymerization
        Type: general
      – SubjectFull: Chemical purification
        Type: general
      – SubjectFull: Nanofiltration
        Type: general
    Titles:
      – TitleFull: Polyamide membranes with structural homogeneity regulated by alkyl chain engineering for precise molecular sieving.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Yang, Hui
      – PersonEntity:
          Name:
            NameFull: Wang, Dan
      – PersonEntity:
          Name:
            NameFull: Gu, Shuyun
      – PersonEntity:
          Name:
            NameFull: Zhou, Linlong
      – PersonEntity:
          Name:
            NameFull: Li, Siyao
      – PersonEntity:
          Name:
            NameFull: Xu, Zhi
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 00011541
          Numbering:
            – Type: volume
              Value: 72
            – Type: issue
              Value: 5
          Titles:
            – TitleFull: AIChE Journal
              Type: main
ResultId 1