PAMAM dendrimer-induced cross-linking modification of polyimide membranes

Tai Shung Chung; Mei Lin Chng; K. P. Pramoda; Youchang Xiao

doi:10.1021/la034610z

PAMAM dendrimer-induced cross-linking modification of polyimide membranes

Tai Shung Chung^*, Mei Lin Chng, K. P. Pramoda, Youchang Xiao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

A novel cross-linking agent, PAMAM dendrimer, was employed to chemically cross-link 6FDA-durene polyimide at room temperature. The gel content increased with the immersion time, indicating that there is no reaction between the polyimide chain's mobility and free volume during the modification process. XPS showed that the content of N on the polymer surface increases and its chemical environment changes with increasing modification time. Cross-linking formed through the reaction between the amine groups of dendrimers and imide groups of polyimide, monitored by FTIR-ATR. The CO₂ permeability increase after modification was attributed to a significant increase of solubility in the cross-linked polymer.

Original language	English (US)
Pages (from-to)	2966-2969
Number of pages	4
Journal	LANGMUIR
Volume	20
Issue number	7
DOIs	https://doi.org/10.1021/la034610z
State	Published - Mar 30 2004
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la034610z

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title = "PAMAM dendrimer-induced cross-linking modification of polyimide membranes",

abstract = "A novel cross-linking agent, PAMAM dendrimer, was employed to chemically cross-link 6FDA-durene polyimide at room temperature. The gel content increased with the immersion time, indicating that there is no reaction between the polyimide chain's mobility and free volume during the modification process. XPS showed that the content of N on the polymer surface increases and its chemical environment changes with increasing modification time. Cross-linking formed through the reaction between the amine groups of dendrimers and imide groups of polyimide, monitored by FTIR-ATR. The CO2 permeability increase after modification was attributed to a significant increase of solubility in the cross-linked polymer.",

author = "Chung, {Tai Shung} and Chng, {Mei Lin} and Pramoda, {K. P.} and Youchang Xiao",

year = "2004",

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doi = "10.1021/la034610z",

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T1 - PAMAM dendrimer-induced cross-linking modification of polyimide membranes

AU - Chung, Tai Shung

AU - Chng, Mei Lin

AU - Pramoda, K. P.

AU - Xiao, Youchang

PY - 2004/3/30

Y1 - 2004/3/30

N2 - A novel cross-linking agent, PAMAM dendrimer, was employed to chemically cross-link 6FDA-durene polyimide at room temperature. The gel content increased with the immersion time, indicating that there is no reaction between the polyimide chain's mobility and free volume during the modification process. XPS showed that the content of N on the polymer surface increases and its chemical environment changes with increasing modification time. Cross-linking formed through the reaction between the amine groups of dendrimers and imide groups of polyimide, monitored by FTIR-ATR. The CO2 permeability increase after modification was attributed to a significant increase of solubility in the cross-linked polymer.

AB - A novel cross-linking agent, PAMAM dendrimer, was employed to chemically cross-link 6FDA-durene polyimide at room temperature. The gel content increased with the immersion time, indicating that there is no reaction between the polyimide chain's mobility and free volume during the modification process. XPS showed that the content of N on the polymer surface increases and its chemical environment changes with increasing modification time. Cross-linking formed through the reaction between the amine groups of dendrimers and imide groups of polyimide, monitored by FTIR-ATR. The CO2 permeability increase after modification was attributed to a significant increase of solubility in the cross-linked polymer.

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EP - 2969

JO - LANGMUIR

JF - LANGMUIR

IS - 7

ER -

PAMAM dendrimer-induced cross-linking modification of polyimide membranes

Abstract

ASJC Scopus subject areas

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