2003
DOI: 10.1021/ma021502v
|View full text |Cite
|
Sign up to set email alerts
|

Effects of Low Matrix Glass Transition Temperature on the Cluster Formation of Ionomers Having Two Ion Pairs per Ionic Repeat Unit

Abstract: The dynamic mechanical properties and morphology of novel ethyl acrylate ionomers, poly-(ethyl acrylate-co-itaconate) [P(EA-co-ITA)], were investigated. It was found that the P(EA-co-ITA) ionomers showed a well-developed cluster loss tangent peak, which was not seen in poly(styrene-coitaconate) ionomers. This is probably due to the low matrix Tg of the PEA ionomers, which allows ITA units to form a significant number of multiplets, leading to high clustering. The large difference in the matrix and cluster T g'… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

3
14
0

Year Published

2005
2005
2013
2013

Publication Types

Select...
5
3

Relationship

3
5

Authors

Journals

citations
Cited by 22 publications
(17 citation statements)
references
References 22 publications
3
14
0
Order By: Relevance
“…Dynamic mechanical analysis (DMA) reveals that, depending on the ionic group content, the relaxation associated to the glass transition temperature shifts to higher temperatures, increases the width of the relaxation, or even shows a phase separation behavior 24,25. This fact can be observed in the Figure 2, where loss tangent is plotted against temperature.…”
Section: Resultsmentioning
confidence: 93%
“…Dynamic mechanical analysis (DMA) reveals that, depending on the ionic group content, the relaxation associated to the glass transition temperature shifts to higher temperatures, increases the width of the relaxation, or even shows a phase separation behavior 24,25. This fact can be observed in the Figure 2, where loss tangent is plotted against temperature.…”
Section: Resultsmentioning
confidence: 93%
“…Investigations dealing with hydration and swelling of membranes have been carried out to analyze the influence of hydration conditions on transport properties of polymer [22][23][24]. In ionic polymers, hydration makes that adjacent clusters to be interconnected through channels that enhances ion and water transport [25][26][27][28].…”
Section: Introductionmentioning
confidence: 99%
“…It should be mentioned that at a cluster glass transition, ion hopping is operative,6, 9, 13–19 which is directly related with the strength of interactions between ion pairs. If the size of the multiplets of the PSMA‐SS ionomer is larger, due to the presence of more ion pairs per multiplet, than those of the PSS and PSMA ionomers, the ion pairs in the multiplet of the PSMA‐SS ionomer will experience difficulty in hopping.…”
Section: Resultsmentioning
confidence: 99%