Page 100 - 《精细化工》2020年第4期
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第 37 卷第 4 期                             精   细   化   工                                  Vol.37, No.4
             202 0 年 4 月                             FINE CHEMICALS                                 Apr.    2020


              表面活性剂
                              可聚合型离子液体乳化剂的性能及


                                         在 SAN 合成中的应用



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                       孙   健 ,李岱霖 ,王吉洋 ,王   宏 ,高华晶 ,金朝辉
                 (1.  吉林化工学院  石油化工学院,吉林  吉林    132022;2.  吉林化工学院  研究生学院,吉林  吉林    132022)
                 摘要:甲基丙烯酸二甲氨基乙酯与溴代烷烃反应合成可聚合离子液体——甲基丙烯酸二甲氨基乙酯丁基溴盐
                 ([DMC 4 ]Br)、甲基丙烯酸二甲氨基乙酯癸基溴盐([DMC 10 ]Br)、双甲基丙烯酸二甲氨基乙酯丁基溴盐
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                 ([DM-C 4 -DM]Br 2 )和双甲基丙烯酸二甲氨基乙酯癸基溴盐([DM-C 10 -DM]Br 2 )。采用 HNMR 和 FTIR 对其结
                 构进行了表征。用电导率法测得其临界胶束浓度分别为 16.20、11.20、25.61 和 16.13 mmol/L。分别以[DMC 10 ]Br、
                 [DM-C 10 -DM]Br 2 和十二烷基磺酸钠(SDS)为乳化剂制备了苯乙烯-丙烯腈共聚物(SAN);当[DM-C 10 -DM]Br 2
                 添加量(以单体总质量计,下同)为 4%时,所制备的 SAN 单体转化率为 90.2%;粒径为 320.3 nm;SAN 主链
                 热分解起始温度为 353  ℃;制备后废水的化学需氧量(COD)为 937  mg/L。该乳化剂制备的 SAN 的主链热分
                 解温度比 SDS 制备的 SAN 提高了 22  ℃,废水 COD 降低了 1512 mg/L。
                 关键词:可聚合离子液体;乳化剂;临界胶束浓度;SAN 乳液聚合;COD 值;表面活性剂
                 中图分类号:TQ317.4      文献标识码:A      文章编号:1003-5214 (2020) 04-0734-07



                            Properties of polymerizable ionic liquid emulsifier and
                                          its application in SAN synthesis


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                       SUN Jian , LI Dailin , WANG Jiyang , WANG Hong , GAO Huajing , JIN Zhaohui
                 (1. School of Petrochemical Technology, Jilin Institute of Chemical Technology, Jilin 132022, Jilin, China; 2. School of
                 Graduate, Jilin Institute of Chemical Technology, Jilin 132022, Jilin, China)
                 Abstract:  A  series  of  polymerizable  ionic  liquids,  dimethylaminoethyl  methacrylate  butyl  bromide
                 ([DMC 4]Br),  dimethylaminoethyl  methacrylate  decyl  bromide  ([DMC 10]Br),  dimethylaminoethyl
                 dimethylacrylate butyl bromide ([DM-C 4-DM]Br 2) and dimethylaminoethyl dimethylacrylate decyl bromide
                 ([DM-C 10-DM]Br 2)  were  synthesized  from  dimethylaminoethyl  methacrylate  and  different  brominated
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                 alkanes.  Their  structures  were  determined  by  HNMR  and  FTIR.  Their  corresponding  critical  micelle

                 concentrations were 16.20, 11.20, 25.61 and 16.13 mmol/L, respectively, by conductivity method. Styrene
                 acrylonitrile copolymers (SAN) were prepared using [DMC 10]Br, [DM-C 10-DM]Br 2 and sodium dodecyl
                 sulfonate (SDS) as emulsifiers, respectively. When the amount of [DM-C 10-DM]Br 2 (based on total mass of
                 monomers, the same below) was 4%, the conversion rate of monomers was 90.2%, and the particle size of
                 SAN emulsion was 320.3 nm. The initial temperature of main chain thermal decomposition of prepared SAN
                 was 353  ℃, and the chemical oxygen demand (COD) of wastewater was 937 mg/L. The main chain thermal
                 decomposition  temperature  of  SAN  prepared  by  this  emulsifier  was  22  ℃  higher  than  that  of  SAN
                 prepared by the same amount of SDS, and the wastewater COD was 1512 mg/L lower.
                 Key words: polymerizable ionic liquids; emulsifier; critical micelle concentration; emulsion polymerization
                 of SAN; chemical oxygen demand value; surfactants



                 收稿日期:2019-10-14;  定用日期:2019-12-20; DOI: 10.13550/j.jxhg.20190969
                 基金项目:吉林省科技发展计划项目(20180201019SF);吉林省科技厅研究基金项目(20100551);吉林省产业技术研究与开发专项
                 (2013779)
                 作者简介:孙   健(1984—),男,博士。联系人:金朝辉(1970—),男,教授,E-mail:jinzhaohui@jlict.edu.cn。
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