NDLI: Analysis of crosslinking in polypyrrole particles synthesized by plasma

Content Provider	Springer Nature Link
Author	Gomez, L. M. Cruz, G. J. Olayo, M. G. Gonzalez Torres, M. Gonzalez Salgado, F. Lopez Gracia, O. G.
Copyright Year	2014
Abstract	This work presents a study of the chemical structure, thermal degradation and electric conductivity of spherical particles synthesized as a result of intense crosslinking of pyrroles in plasma glow discharges. A new method to calculate crosslinking, hydrogenation and fragmentation in polymers was developed in this task based on XPS calculations. The results indicated that the percentages of hydrogenated states in polypyrrole particles varied in the 37.1–46.6 % and 55.5–58.5 % intervals for C and N, respectively. The participation of crosslinked states increased from 48.5 to 59.8 % with the energy of synthesis considering C atoms and decreased from 24 to 6 % for N atoms. The particles have two thermal degradations, the first between 115 and 400 °C and the second with mean temperature degradation of 535 °C. The electric conductivity of the particles was in the range of 10−5–10−10 S/m with activation energy between 1.96 and 2.34 eV. This behavior can be associated with the crosslinking percentages in the particles.
Starting Page	3275
Ending Page	3287
Page Count	13
File Format	PDF
ISSN	01700839
Journal	Polymer Bulletin
Volume Number	71
Issue Number	12
e-ISSN	14362449
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-09-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polypyrrole Particles Plasma XPS Crosslinking Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Condensed Matter Physics Polymers and Plastics

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