含荧光基团的丙烯酸-丙烯酰胺共聚物的合成

石油化工006年第35卷第2期PETROCHEMICAL TECHNOLOGY145含荧光基团的丙烯酸-丙烯酰胺共聚物的合成雷武!,平春霞,王风贺',夏明珠',张跃华·2,王风云(1.南京理工大学工业化学研究所,江苏南京210094;2.南通大学化学化工学院,江苏南通226007)[摘要]以4-氯-1,8-萘二甲酸酐和3-二甲氨基内胺为原料合成了一种水溶性的荧光单体4-甲氧基-N-(2-N,N-甲基氨基丙基)萘二甲酰亚胺烯丙基氯化铵(4- MNDMAPN-AQ),并得到了最佳的合成条件。通过红外光谱、核磁共振谱、质谱等方法对产物结构进行了表征。将该荧光单体与丙烯酸(AA)、丙烯酰胺(AM)共聚,得到了共聚物AAAM4- MNDMAPNAQ。对该共聚物的荧光性质和阻垢性能进行了系统研究,结果表明,该共聚物的荧光强度与其质量浓度呈良好的线性关系,线性相关系数为09950,检测下限为0.48mg/L。采用硬垢法,在(75±0.2)℃、[Ca2+]=5mmoL、[HCO3]=10mmoM/L、恒温10h、共聚物AAAM4 MNDMAPN-AQ的质量浓度为2.5mg/L的条件下,该共聚物的阻垢率可达70.78%,与阻垢性能良好的2-膦酸基丁烷-1,2,4-三羧酸相当,达到了阻垢剂的阻垢分散性能要求,表明该共聚物具有良好的阻垢性能[关键词]荧光单体;季铵盐;合成;共聚物;丙烯酸;丙烯酰胺;阻垢剂[文章编号]1000-8144(2006)02-0145-06中图分类号]TQ085.412[文献标识码]ASynthesis of Acrylic Acid-Acrylamide Copolymer Containing Fluorescent GroupLei Wu', Ping Chunxia, Wang Fenghe, Xia Mingzhu, Zhang Yuehua, Wang Fengyun(l Industrial Chemistry Institute, Nanjing University of Science& Technology, Nanjing Jiangsu 210094, China;2. College of Chemistry and Chemical Engineering, Nantong University, Nantong Jiangsu 226007, China)Abstract] A novel water soluble fluorescent monomer, 4-methoxy-N-( 3-dimethylaminopropylnaphthalimide allyl chloride quatemary ammonium salt(4-MNDMAPN-AQ), was synthesized from 4chloro-1, 8-naphthalic anhydride and 3-dimethyl amino propylamine. The optimal reaction conditionswere obtained, and structure of the product was characterized by means of IR, H NMR and ms. Thecopolymer AA/AM/4-MNDMAPN-AQ from acrylic acid( AA), acrylamide( AM)and 4-MNDMAPN-AQ was prepared. The fluorescent properties and scale inhibition performance of the copolymer werestudied in detail. Relationship between fluorescent intensity and concentration of copolymer was linearin concentration range of 1-8 mg/L. The correlation coefficient(R )was 0. 995 0. Under optimalconditions:[ Ca*]=5 mmol/L, HCO ]=10 mmol/L, I=(75+0. 2)C for 10 h and copolymermass concentration 2. 5 mg/L, the scale inhibition rate could reach 70. 78% by means of hard scaledetermination. Beside possessing fluorescence, the copolymer AA/AM/4-MNDMAPN-AQ, as a higherformance scale inhibitor, was comparable with 2-phosphono-butane-1, 2, 4-tricarboxylic acid whichwas known as the best scale inhibitorKeywords] fluorescent monomer; quaternary ammonium salt synthesis; copolymer; acrylic acidcrylamide scale inhibitor有机膦类阻垢缓蚀剂一直以来都是水处理药剂加药方式中因加药不及时造成的腐蚀、结垢等问题或的核心组分,随着环境保护要求的日益提高,低膦、无加药过多而造成的资源浪费,实现了水处理药剂的在膦药剂成为水处理领域的发展趋势1-。同时由于线分析和自控加药,国内在这方面的研究刚刚起步3处理过程中的监控要求,传统的用化学分析总磷作为中国煤化工,首先以4一氯一1,药剂有效浓度控制指标的方法越来越不适应需要。具有荧光性能的水处理药剂是一种示踪型水处理剂[收CNMHG]200-11-05。[作者简介]雷武(1971-),男湖北省武汉市人,硕士,副教投,电具有灵敏度高、检测下限低等优点,成为水处理领域话025-8415190,电邮leiwuhao@yahoo.com,cm。联系人:王风的研究热点8-18。采用示踪型水处理剂避免了传统云,电话025-84315190石油化工PETROCHEMICAL TECHNOLOGY2006年第35卷8-萘二甲酸酐和3-二甲氨基丙胺为原料,经3步系,及其对CaCO3的阻垢分散性能。反应合成了一种水溶性的荧光单体4-甲氧基N-(2-N,N-二甲基氨基丙基)萘二甲酰亚胺烯1实验部分丙基氯化铵(4- MNDMAPN-AQ),然后与丙烯酸1.1反应方程式(AA)和丙烯酰胺(AM)共聚,得到了一种新型多功单体4- MNDMAPN-AQ的合成反应见式能含荧光基团的共聚物(AAAM4- MNDMAPN(1);共聚物AAAM4- MNDMAPN-AQ的合成AQ)。考察了该共聚物质量浓度与荧光强度的关反应见式(2)。CH,CH,CHIN