The molecular weight of sulfonic acid ring-substituted polyaniline by laser light scattering

Hsu, Chien‐Ning; Peacock, Patricia M.; Flippen, R. B.; Jiang, Yue; Epstein, Arthur J.

doi:10.1016/0379-6779(93)91283-8

Cited by 10 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1650 cm -1 , assigned to >C=O stretching which is related to the formation of quinones by chemical degradation of the chain. This observation is in agreement with the reported decrease in the molecular weight of PANI during electrophilic sulfonation due to hydrolysis in the harsh sulfonation conditions [31].…”

Section: Sulfonationsupporting

confidence: 83%

See 1 more Smart Citation

Organic Chemistry of Polyanilines: Tailoring Properties to Technological Applications~!2008-08-19~!2008-09-11~!2008-11-28~!

Miras¹,

Acevedo²,

Monge³

et al. 2008

TOMACROJ

View full text Add to dashboard Cite

Abstract:The use of organic chemistry reactions to introduce additional functional groups on polyanilines is described. Among the reactions discussed are: electrophilic aromatic substitution, nucleophilic addition to the aromatic rings, nucleophilic substitution on the amine groups and reactions on pendant groups. The use of combinatorial chemistry techniques, by coupling of combinatorially synthesised diazonium salts with polyaniline, to produce a functionalized polyanilines library is also reviewed. The modification of polyaniline introduces or alters different properties of the materials: solubility, self-doping and redox coupled ion exchange. The tailoring of those properties to technical applications is therefore examined.

show abstract

Section: Sulfonationsupporting

confidence: 83%

“…The method represents a more environment friendly procedure than electrophylic substitution with sulfonating agents. Another advantage is was proved that the chain length is unaltered by the reaction, unlike electrophilic sulfonation where a decrease is observed [31].…”

Section: Addition Of Sulfite Ionsmentioning

confidence: 99%

Organic Chemistry of Polyanilines: Tailoring Properties to Technological Applications~!2008-08-19~!2008-09-11~!2008-11-28~!

Miras¹,

Acevedo²,

Monge³

et al. 2008

TOMACROJ

View full text Add to dashboard Cite

show abstract

“…The mass average particle molar mass was determined by SLS and resulted to be 5.2x10 8 g/mol. About in the same period, other researchers applied LS for the Mw determination of sodium salt of sulfonic acid ring-substituted polyaniline (SPAN) [47] . The average M w of hydrazine-reduced SPAN was 11,000 g/mol and the number of ring-nitrogen units per polymer chain resulted to be 39.…”

Section: Molecular Weight By Light Scattering (Ls) Techniquementioning

confidence: 99%

A Journey into the Determination of Polyaniline Molecular Weight

Bianchi

Djellabi

Falletta

2021

Advanced Materials Science and Technology

View full text Add to dashboard Cite

Over the last decades, the construction and design of conducting polymer-based materials have received a huge attention due to their special physico-chemical characteristics making them very useful and alternative materials in various fields. Among intrinsically conducting polymers, polyaniline (PANI) has been widely used and a pool of scientific research has been done to improve its properties and/or to combine it with other materials to get multifunction materials with enhanced efficiency. However, the scarce information is available to date on its molecular weight (Mw) limits obtaining structural information. In fact, owing to the poor solubility of the material the most part of the results concerns dimeric and oligomeric species, whereas a complete characterization of the longest chains is still far away. Since the synthetic strategies used to produce PANI critically affect its properties and chemical-physical characteristics, included Mw, the present work summarizes the most common methods applied for PANI synthesis and the different analytical approaches used to determine the Mw of the polymer and of its oligomers, in order to stimulate further investigation that can contribute to widen the information on this unique polymer.

show abstract

“…POMA has a group (-OCH 3 ) in the ortho position of the carbon rings [10,11]. As in PANI, POMA also can be obtained in different oxidation states and the POMA Emeraldine-form can be found in the basic form (EB-POMA) or salt form (ES-POMA) [12,13].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Poly(o-methoxyaniline) Emeraldine-base form obtained at different time neutralization

Sanches¹,

Gomes²,

Soares³

et al. 2014

Journal of Molecular Structure

View full text Add to dashboard Cite

The molecular weight of sulfonic acid ring-substituted polyaniline by laser light scattering

Cited by 10 publications

References 12 publications

Organic Chemistry of Polyanilines: Tailoring Properties to Technological Applications~!2008-08-19~!2008-09-11~!2008-11-28~!

Organic Chemistry of Polyanilines: Tailoring Properties to Technological Applications~!2008-08-19~!2008-09-11~!2008-11-28~!

A Journey into the Determination of Polyaniline Molecular Weight

Characterization of Poly(o-methoxyaniline) Emeraldine-base form obtained at different time neutralization

Contact Info

Product

Resources

About