2003
DOI: 10.1002/pi.1143
|View full text |Cite
|
Sign up to set email alerts
|

Surface modification studies of Kapton® HN polyimide films

Abstract: Surface imide hydrolysis of Kapton HN polyimide films in a 1 M KOH aqueous solution was studied using dynamic contact angle measurements, X‐ray photoelectron spectroscopy (XPS) and time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS). The surface energy of Kapton HN increased quickly upon KOH treatment due to the formation of polar polyamate. Prolonged treatment led to a jump in surface energy that we ascribe to the onset of etching causing increased surface roughness. Potassium depth profiles of treated … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

1
42
0
1

Year Published

2005
2005
2023
2023

Publication Types

Select...
9

Relationship

0
9

Authors

Journals

citations
Cited by 65 publications
(44 citation statements)
references
References 22 publications
1
42
0
1
Order By: Relevance
“…It is worth noting that the combination of many chemical processes such as ethoxylation with in situ polymerization of BMI and imide chemical modification was the reason for formation of new generation of BMI resins that may have lower density structure. This imide chemical modification was indicated by the presence of amic acid, however, as described in literature, the cleavage of imide groups requires an alkaline medium [63] or oxidizing acids such as chromic acid and perchloric acid [64] or catalyst such as Amano PS [65]. As XPS results indicate the formation of positive charges on imide nitrogen particularly in PEI-BMI-EtOH-S membranes might suggest that the free proton or proton radical produced after ethoxylation process was responsible for imide cleavage in PEI-BMI-EtOH-S and L membranes.…”
Section: Formation Of the Bmi/pei Semi-ipnmentioning
confidence: 97%
“…It is worth noting that the combination of many chemical processes such as ethoxylation with in situ polymerization of BMI and imide chemical modification was the reason for formation of new generation of BMI resins that may have lower density structure. This imide chemical modification was indicated by the presence of amic acid, however, as described in literature, the cleavage of imide groups requires an alkaline medium [63] or oxidizing acids such as chromic acid and perchloric acid [64] or catalyst such as Amano PS [65]. As XPS results indicate the formation of positive charges on imide nitrogen particularly in PEI-BMI-EtOH-S membranes might suggest that the free proton or proton radical produced after ethoxylation process was responsible for imide cleavage in PEI-BMI-EtOH-S and L membranes.…”
Section: Formation Of the Bmi/pei Semi-ipnmentioning
confidence: 97%
“…Up to now, studies regarding the interaction of metal ions with PAA as well as the structural variations of the polymer molecules during the ion exchange process are rather limited. What we could learn from literatures [9,[17][18][19] is only limited to that metal ions would couple with carboxylic acid groups leading to the formation of metalpolycarboxylate and no other detailed information could be obtained. Currently, the chemistry involved in the ion exchange reaction is generally illustrated in Scheme 1.…”
Section: Introductionmentioning
confidence: 99%
“…Three new peaks (marked with circle) emerged on the other hand. The peaks at the wavenumber of 1647 cm À 1 and 1560 cm À 1 were originated from the stretching vibration of amide CQO and C-N bonds, respectively [20,21]. The broad peak in the region of 3100-3500 cm À 1 should be ascribed to the stretching of N-H bonds [22].…”
Section: Conformation Of Ald and Chemical Crosslinking Of The Pes Memmentioning
confidence: 94%