SYNTHESIS OF METHACRYLIC WATER-SOLUBLE POLYMER USING SODIUM METHALLYLSULFONATE AS MOLECULAR-WEIGHT CONTROL AGENT - PROPERTIES AS CEMENT DISPERSING AGENT

被引：8

作者：

KINOSHITA, M ^{[1
]}

YUKI, Y ^{[1
]}

MIURA, Y ^{[1
]}

TAKAHASHI, T ^{[1
]}

机构：

[1] TAKEMOTO OIL & FAT CO LTD,GAMAGORI,AICHI 443,JAPAN

来源：

KOBUNSHI RONBUNSHU | 1995年 / 52卷 / 01期

关键词：

POLYMERIZATION; SODIUM METHALLYLSULFONATE; AQUEOUS SOLUTION; MOLECULAR WEIGHT; WATER SOLUBLE COPOLYMER; CEMENT DISPERSING AGENT;

D O I：

10.1295/koron.52.33

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In order to produce cement concrete with high fluidity and high quality, cement dispersing agents comprising water soluble polymer have been examined. To find an effective method of molecular weight control for attaining high cement-dispersing ability, polymerization of sodium methallylsulfonate (SMS) was investigated in aqueous solution using ammonium persulfate. The polymerization rate was very slow, and it was found that SMS underwent considerable degradative chain transfer. The copolymerization of sodium methacrylate, sodium omega-methoxyoligo(oxyethylene)methacrylate (oxyethylene unit=9) and methyl acrylate with SMS was carried out in aqueous solution. In the presence of SMS, the reaction progressed without gelation, and the copolymer having a suitable molecular weight was obtained. These results indicate that SMS is useful as molecular weight control agent for radical copolymerization in aqueous solution.

引用

页码：33 / 38

页数：6

共 4 条

[1] THE POLYMERIZATION OF ALLYL COMPOUNDS .1. FACTORS GOVERNING THE ACYL PEROXIDE-INDUCED POLYMERIZATION OF ALLYL ACETATE, AND THE FATE OF THE PEROXIDE [J].