Alkali hydrolysis experiment of organic materials such as cement additives

Fukumoto, Masahiro; Nishikawa, Yoshiaki*

JNC TN8400 2001-017, 355 Pages, 2001/03

JNC-TN8400-2001-017.pdf:6.43MB

The alkali hydrolysis experiments which seem to be important from the view point of the alteration mechanism using the following seven organic materials was performed as a part of the evaluation of the influence on the disposal of the organic materials contained in the TRU wastes. As a result of the alkali hydrolysis experiments (90C and 91d), each organic materials became those of lower molecular weight. The degradation products were able to be detected in the solution. The organic materials seem to be degraded to the organic matters which were confirmed in this study in a long term of disposal. The degradation products were shown below. Therefore, the evaluation of the influence on the migration of radionuclides by degradation products becomes important in the future. (1)Cement additives of Naphthalenesulfonic acid and Ligninsulfonic acid ( Naphthalenedisulfonic acid etc.) (2)Cement additives of polycarboxylic acid ( Oligomer of distal methoxypoly ethylene glycol.) (3)Ethylenediamine-N,N,N',N'-tetraacetic acid disodium salt ( Acetic acid desorped and cyclized organic matters from EDTA.) (4)Tributyl phosphate ( Dibutyl phthalate, n-butanol) (5)Poly vinyl acetate ( Acetic acid) (6)Nylon66 ( Adipic acid, Hexamethylenediamine) (7)Cured epoxy resin ( Glycerol poly glycidyl ether, Carboxylic acid)

Reversible on-off switch function of ion-track pores for thermo-responsive films based on copolymers consisting of diethyleneglycol-bis-allylcarbonate and acryloyl-L-proline methyl ester

Yoshida, Masaru; Nagaoka, Noiyasu*; Asano, Masaharu; Omichi, Hideki; Kubota, Hitoshi*; Ogura, K.*; Vetter, J.*; Spohr, R.*; Katakai, Ryoichi*

Journal of Nuclear Materials, 122(1), p.39 - 44, 1997/00

no abstracts in English

Sensitized etching in CR-39 copolymerized with methacryloyl-L-alanine methyl ester

Tamada, Masao; Yoshida, Masaru; Asano, Masaharu; Omichi, Hideki; Katakai, Ryoichi*; Trautmann, C.*; Vetter, J.*; Spohr, R.*

GSI 93-1, P. 290, 1993/03

no abstracts in English

Thermally responsive track pores in copolymer film of CR-39

Tamada, Masao; Yoshida, Masaru; Asano, Masaharu; Omichi, Hideki; Katakai, Ryoichi*; Trautmann, C.*; Vetter, J.*; Spohr, R.*

GSI-92-1, P. 267, 1992/03

no abstracts in English

Photoinduced organic transformation, selective synthesis of ethylene glycol or formic acid and methyl formate from methanol in the presence of hydrogen peroxide

Shimizu, Yuichi; Sugimoto, Shunichi; Kawanishi, Shunichi; Suzuki, Nobutake

Bulletin of the Chemical Society of Japan, 63(1), p.97 - 101, 1990/01

https://doi.org/10.1246/bcsj.63.97

no abstracts in English

A Method of measurement of tritium concentration in room air using ethylene glycol

Kobayashi, Makoto;

Hoken Butsuri, 24, p.293 - 295, 1989/00

https://doi.org/10.5453/jhps.24.293

no abstracts in English

Subcutaneous testosterone transport characterisitics in castrated Wistar rats with controlled drug delevery composites containing polyethylene glycol(Mn=1900-2100)

; Asano, Masaharu; Kaetsu, Isao; *; *; *

Kobunshi Rombunshu, 41(3), p.145 - 150, 1984/00

https://doi.org/10.1295/koron.41.145

no abstracts in English

Stabilization of chloroplast by radiation-induced immobilization with various glass-forming monomers

; Fujimura, Takashi; Kaetsu, Isao

Biotechnol.Bioeng., 23, p.833 - 841, 1981/00

no abstracts in English

Preparation and its drug release of radiation polymerized poly(methyl methacrylate)capsule including potassium chloride

; ; Kaetsu, Isao

Kobunshi Rombunshu, 36(1), p.35 - 40, 1979/00

https://doi.org/10.1295/koron.36.35

no abstracts in English