氨基磺酸型两性离子化合物热力学性质研究  

Study on the Thermodynamic Properties of Sulfamic acid-Based Zwitterionic Compounds

作　　者：青卿 刘世杰 汪词明 何玉韩 罗江水 QING Qing;LIU Shijie;WANG Ciming;HE Yuhan;LUO Jiangshui(Lab of Electrolytesand Phase Change Materials,College of Materials Science and Engineering,Sichuan University,Chengdu,610065,China.E-mail:[e-mail];Fujian Ningde Aishuyuncheng New Materials Technology Co.,Ltd.,Ningde,355200,China;School of Geography and Environmental Engineering,Gannan Normal University,Ganzhou,341000,China)

机构地区：[1]四川大学材料科学与工程学院电解质与相变材料实验室,四川成都610065 [2]福建省宁德市艾舒云诚新材料科技有限公司,福建宁德355200 [3]赣南师范大学地理与环境工程学院,江西赣州341000

出　　处：《光散射学报》2024年第2期134-141,共8页The Journal of Light Scattering

基　　金：国家自然科学基金(22378270、21776120);四川省科技计划(2022ZYD0016、2023JDRC0013);福建省自然科学基金(2023J01254);呼和浩特市科技计划项目(2023-揭榜挂帅-高-3);广东省燃料电池技术重点实验室2022年开放基金(基金号:FC202218、FC202206);2023年四川大学研究生培养教育创新改革项目(2023JXAL008)资助。

摘　　要：选取了四种氨基磺酸型两性离子化合物:氨基磺酸(SA)、氨基甲磺酸(AMA)、牛磺酸(TAU)和3-氨基-1-丙磺酸(APA),利用傅里叶变换红外光谱(FT-IR)研究了四种物质的两性离子结构。红外光谱中NH3+伸缩振动峰和SO3-的伸缩振动峰表明四种物质以两性离子化合物的形式存在。通过差示扫描量热法(DSC)和热重分析(TGA)研究了相变温度和热稳定性。结果表明四种两性离子化合物都是熔融的同时伴随着分解,并且TAU的热稳定性最好。Four zwitterionic compounds of sulfamic acid type:sulfamic acid(SA),aminomethanesulfonic acid(AMA),taurine(TAU),and 3-amino-1-propanesulfonic acid(APA)were selected.Fourier-transform infrared spectroscopy(FT-IR)was employed to investigate the zwitterionic structures of these compounds.The results demonstrate the presence of zwitterionic forms for all four substances,as evidenced by the presence of stretching vibrational peaks for NH 3+and SO 3-in the infrared spectra.Phase transition temperatures and thermal stability were analyzed using differential scanning calorimetry(DSC)and thermogravimetric analysis(TGA).The results indicate that all four zwitterionic compounds undergo melting accompanied by decomposition,with taurine exhibiting the highest thermal stability.

关 键 词：两性离子化合物 傅里叶变换红外光谱 热力学 差示扫描量热法 恒温热重法 

分 类 号：TQ026.6[化学工程]