Publications


Title : Neutron Spin Echo Studies on Poly(Vinyl Alcohol) Gel in a Mixture of Dimethyl Sulfoxide and Water

Language: English
Type: Article
Authors: Toshiji Kanaya, N. Takahashi, K. Nishida, K. Kaji, Hideki Seto, Michihiro Nagao, Youhei Kawabata and Takayoshi Takeda
Journal: Journal of Neutron Research
Volume: 10
Number: 3-4
Year: 2002
Actual year: 2002
Pages: 149-153
doi:   10.1080/1023816021000020644
Abstract: Dynamics of poly(vinyl alcohol) (PVA) gel have been investigated using a neutron spin echo technique. The intermediate scattering function I ( Q , t ) of the gel shows a very rapid decay and a non-decaying component in time ranges shorter and longer than about 3 ns, respectively, in the Q range of 0.03-0.1 -1 . This Q range corresponds to the so-called Porod's region, suggesting that we are seeing the dynamics of cross-linking points of the gel. We therefore analyzed the data assuming that the cross-linking point performs a random motion in a restricted region around its quasi-equilibrium position.

"Neutron Spin Echo Studies on Poly(Vinyl Alcohol) Gel in a Mixture of Dimethyl Sulfoxide and Water"

Toshiji Kanaya, N. Takahashi, K. Nishida, K. Kaji, Hideki Seto, Michihiro Nagao, Youhei Kawabata and Takayoshi Takeda, Journal of Neutron Research, 10, 149-153 (2002)