Memoirs of the Faculty of Education, Shimane University. Natural science

number of downloads : ?
Memoirs of the Faculty of Education, Shimane University. Natural science 32
1998-12-01 発行

紫外線照射された天然繊維中に生じたラジカルのESR研究

An ESR study of radicals produced in UV-irradiated natural fibers
Sogabe, Kunihisa
Kanayama, Ryoko
Sakamoto, Ikko
File
Description
The same radical, g=2.0046, was detected in UV-irradiated natural fibers, spider's strings or silk, origining in their peptide structures. Their fibers structure are respectively diffrent, but they seem to have the same structure damaged by UV-irradiation.
In the case of UV-irradlated silk, radicals produced in raw silk were very strong, but deduced by alkaline treatment with 0.01 mol/l NaOH for 1 hr.. Othreside, radicals for silk strings were increased by alkaline treatment under the same condition. This fact seems to suggest an adequate alkaline treatment protects natural fibers as silk against UV-irradiation.