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ABSTRACT The mobility of nonionic and anionic spin probes in water-containing quaternized poly(4-vinylpyridine) membranes was investigated by means of an electron spin resonance (ESR)

technique. Poly(4-vinylpyridine) was quaternized and crosslinked by dibromoalkane Br(CH2)_n_Br (_n_=4, 6, 8, 10), and the effects of the side alkyl chain length were studied. Three spin

probes, 2,2,4,4-tetramethyl-1,2,3,4-tetrahydro-γ-carboline-3-oxyl (SPII), 2,2,6,6-tetramethyl-1-piperidinyloxy (SPIV), and sodium 2,2,5,5-tetramethyl-1-pyrrolidinyloxy-3-carboxylate (ASPI),

were used. In the temperature region examined, the side methylene chain length had no effect on the mobility of SPII and SPIV, but a little effect for ASPI. This suggests that the ASPI can

monitor the mobility of the side alkyl chain. In addition, the effects of water on the mobility of the spin probes were investigated. The mobility of the spin probes was much greater in the

membrane containing 30 wt% water than in that containing 3 wt% water, and the polarity around the probes was larger in the former than in the latter membrane. From this, as pointed out in

our previous papers on nylon 6/spin probe systems, the effects of water are divided into (1) the effects on the mobilities of the polymer chains and probe molecules, and (2) the effects on

the microenvironment around the spin probes. SIMILAR CONTENT BEING VIEWED BY OTHERS EFFECT OF CROSSLINK-INDUCED HETEROGENEITIES ON THE TRANSPORT AND DEFORMATION BEHAVIOR OF HYDROPHILIC IONIC

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AFFILIATIONS * Department of Polymer Science, Tokyo Institute of Technology, Yoshihiko Makino, Kunihiro Hamada & Toshiro Iijima Authors * Yoshihiko Makino View author publications You

can also search for this author inPubMed Google Scholar * Kunihiro Hamada View author publications You can also search for this author inPubMed Google Scholar * Toshiro Iijima View author

publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Makino, Y., Hamada, K. &

Iijima, T. Mobility of Spin Probes in Quaternized Poly(4-vinylpyridine) Membranes. _Polym J_ 19, 737–745 (1987). https://doi.org/10.1295/polymj.19.737 Download citation * Issue Date: 01 June

1987 * DOI: https://doi.org/10.1295/polymj.19.737 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link

is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative KEYWORDS * Spin Probe * Nitroxide * Poly(4-vinylpyridine) *

Molecular Motion * Water * ESR