TY - JOUR
T1 - Solution behavior of ionomer blends - II. Acid base interactions in blends of poly(phenylene oxide) ionomers and poly(styrene-4-vinylpyridine)
AU - Pan, Yan
AU - Huang, Yuhui
AU - Cheng, Mingcai
AU - Cong, Guangmin
AU - Leung, Louis M L
N1 - Funding Information:
transfer between the carboxylic acid and amino groups\ and the occurrence of proton transfer was supported by IR spectra[ In this paper the reduced viscosity of poly"phenylene oxide# ionomer:poly"styrene!3! vinylpyridine# blends was investigated\ and the purpose is to substantiate the formation of ionic linkages between the components due to the acid base interaction resulting from proton transfer[ In addition\ the factors in~uencing the acid base interaction are discussed[
Funding Information:
Acknowledgements*The research was supported by the National Science Foundation of China\ the National Key Projects for Foundational Research Macromolecular Con! densed State\ the State Science and Technology Commission of China and State Key Engineering Plastics Laboratory[
PY - 1998/2/1
Y1 - 1998/2/1
N2 - The solution behavior of blends of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) ionomers (carboxylated PPO, CPPO, or sulfonated PPO, SPPO) and poly(styrene-4-vinylpyridine) (PSVP) was investigated. The reduced viscosities of both the two series of blends were higher than those of comparable blends composed of PPO and PSVP. This was attributed to the acid-base interactions resulting from proton transfer between the acid groups of the PPO ionomer and the vinylpyridine groups of the PSVP. The existence of proton transfer between sulfonic acid and the pyridine group was confirmed by 1H NMR studies on SPPO/4-VP blend. Moreover, the effects of functionalization level, solution concentration and cosolvent content on the strength of the acid-base interaction were discussed.
AB - The solution behavior of blends of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) ionomers (carboxylated PPO, CPPO, or sulfonated PPO, SPPO) and poly(styrene-4-vinylpyridine) (PSVP) was investigated. The reduced viscosities of both the two series of blends were higher than those of comparable blends composed of PPO and PSVP. This was attributed to the acid-base interactions resulting from proton transfer between the acid groups of the PPO ionomer and the vinylpyridine groups of the PSVP. The existence of proton transfer between sulfonic acid and the pyridine group was confirmed by 1H NMR studies on SPPO/4-VP blend. Moreover, the effects of functionalization level, solution concentration and cosolvent content on the strength of the acid-base interaction were discussed.
UR - https://www.sciencedirect.com/journal/european-polymer-journal/vol/34/issue/2
UR - http://www.scopus.com/inward/record.url?scp=0000507186&partnerID=8YFLogxK
M3 - Journal article
AN - SCOPUS:0000507186
SN - 0014-3057
VL - 34
SP - 213
EP - 217
JO - European Polymer Journal
JF - European Polymer Journal
IS - 2
ER -