丁二酰亚胺在乳化炸药中的应用研究

研究了聚异丁烯丁二酰亚胺作为乳化炸药乳化剂的技术特点,并同常用乳化剂司苯 80作了比较。研究表明,以聚异丁烯丁二酰亚胺作为乳化剂的乳化炸药,具有小而分布均匀的W/O粒子,较强的稳定性及良好的爆炸性能。     

PIBSI对油基钻井液性能影响研究

常温条件下分别采用5号和3号两种白油配制基浆和油基钻井液体系,并在基浆和钻井液体系中加入不同质量分数的聚异丁烯丁二酰亚胺(PIBSI),考察不同温度下PIBSI的质量分数对基浆和钻井液体系流变、沉降和滤失性能的影响。结果表明,对于基浆而言,低温条件下(4℃)PIBSI能够提高基浆的沉降稳定性能,基浆的黏度随PIBSI质量分数的增加先降低后增加。对于油基钻井液体系而言,在适当质量分数下(5号白油体系PIBSI质量分数为2%,3号白油体系PIBSI质量分数为0.2%),PIBSI能够有效降低体系低温条件下(4℃)的黏度,而对室温(25℃)和高温(65℃)条件下体系的黏度、动切力等参数影响程度较小。PIBSI质量分数越高,两种油基钻井液体系的高温高压降滤失量越低。     

丁二酰亚胺,水杨酸乙酯,对羟基苯甲酸乙酯与六亚甲基二异氰酸酯的封闭反应研究

以二丁基锡二月桂酸为催化剂，研究了丁二酰亚胺、水杨酸乙酯、对羟基苯甲酸乙酯与六亚甲基二异氰酸酯之间的封闭反应。结果表明，六亚甲基二异氰酸酯的封闭反应是二级反应，不同的封闭物，反应速率常数不同；升高反应温度，加大催化剂用量均有利于封闭反应的进行。     

微波法合成聚天冬氨酸水凝胶及其对Pb~(2+)的吸附性能

以平均相对分子质量为10000～30000的聚丁二酰亚胺为原料、L-赖氨酸和戊二醛为交联剂,采用微波技术合成了聚天冬氨酸水凝胶。探论了原料配比、反应温度或加热方式、反应时间等对反应的影响。结果表明,微波加热不仅极大地缩短反应时间,而且温度对反应的影响较小。同时,还详细考察了线性聚天冬氨酸和交联聚天冬氨酸水凝胶对Pb2+的吸附作用。结果显示,线性聚天冬氨酸对Pb2+有很强的吸附作用,其吸附容量高(按聚丁二酰亚胺计,吸附容量为1 0g/g),而且具有较低的平衡吸附浓度(小于0 25mg/L),吸附平衡可用Freundlich方程表示;交联聚天冬氨酸水凝胶也是优良的Pb2+吸附剂,其对Pb2+的吸附容量约为190mg/g。根据红外光谱数据推测聚天冬氨酸水凝胶对Pb2+的吸附作用既有离子交换作用又有配位络合作用。     

自由基一步法生产聚异丁烯丁二酸酐及其丁二酰亚胺无灰分散剂

聚异丁烯丁二酸酐（烯酐）是生产丁二酰亚胺型，丁二酸酯型和酚醛胺型无灰分散剂的重要中间体。针对当前热加合工艺和氯化工艺生产燃酐的缺陷，开发了自由基一步法烃化工艺合成烯酐。该工艺经过小试，工业放大试验，生产的烯酐和丁二酰亚胺产品质量符合现行技术指标要求，丁二酰亚胺产品经外光谱分析，其结构与国内外类剂T－152，OLOA－373和LZ－6418相近。新工艺与现行的氯化工艺相比具有工艺简单易行，生产装置投资少，反应温度低，生产周期短，能耗低，生产成本低的特点，而且从工艺源头根除了氯气污染源，符合国家生态安要求。     

Highly luminescent europium and terbium complexes based on succinimide and N-hydroxysuccinimide

The preparation of two highly luminescent europium(III) and terbium(III) complexes with succinimide(SI) and N-hydroxysuccinimide(NHSI) were reported,which were further investigated through elemental chemical analysis,thermal analysis,FT-IR,powder X-ray diffraction,SEM and fluorescence spectroscopy.Data collected through these analysis revealed the formation of the Eu(III) and Tb(III) complexes with the above mentioned ligands at a metal to ligand(M:L) molar ratio of 1:3.Interesting conclusions regarding the efficient sensitization through the coordination site of the lanthanide luminescent centers were retained from the photoluminescent spectra investigation.Strong luminescence emission was observed in case of Eu(III)-SI and Tb(III)-NHSI complexes while the corresponding Eu(III)-NHSI and Tb(III)-SI complexes exhibited no photo luminescent properties.Newly obtained luminescent lanthanide complexes may be of particular interest for various applications in optoelectronics.     

Synthesis and functionalization of nanoengineered materials using click chemistry

The synthesis of nanoengineered materials with precise control over material composition, architecture and functionality is integral to advances in diverse fields, including biomedicine. Over the last 10 years, click chemistry has emerged as a prominent and versatile approach to engineer materials with specific properties. Herein, we highlight the application of click chemistry for the synthesis of nanoengineered materials, ranging from ultrathin films to delivery systems such as polymersomes, dendrimers and capsules. In addition, we discuss the use of click chemistry for functionalizing such materials, focusing on modifications aimed at biomedical applications.     

Direct polymer reaction of poly(styrene‐co‐maleic anhydride): Polymeric imidization

Using direct polymer reaction of poly(styrene‐co‐maleic anhydride) (SMA), a synthesis of copolymer of styrene and N‐aryl succinimide (SMI) has been investigated. SMI copolymers were synthesized from SMA copolymers by a concerted two‐step reaction, which consisted of the condensation reaction (step 1) of SMA with aromatic amine to prepare a precursor, succinamic acid, for imide formation and the cyclodehydration reaction (step 2) of succinamic acid. In this article, the application of Searle's preparation method of N‐aryl or N‐alkyl maleimide to the direct polymer reaction for SMI was attempted. Compared with synthesis of monomeric imides, the imide formation in polymeric condition appeared to be a little more sensitive to the reaction condition. The optimum condition for maximum conversion was examined in terms of time, temperature, and the amount of reactants. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 1187–1196, 1999     

硼化丁二酰亚胺添加剂的合成及性能考察

为了提高丁二酰亚胺添加剂的抗氧化安定性和热稳定性，采用两条路线合成了硼化丁二酰亚胺并对其性能考察。热管氧化试验及热分析结果表明，硼化丁二酰亚胺的抗氧化性及热稳定性均优于未硼化丁二酰亚胺，是一种有前途的润滑油添加剂。     

丁二酰亚胺体系无氰镀铜添加剂的研究

先通过单因素试验,研究了光亮剂(2-巯基苯并咪唑、二氧化硒)和表面活性剂(十二烷基苯磺酸钠、聚乙二醇10000)对无氰镀铜层光泽度的影响。确定的基础镀液组成和工艺条件为:硫酸铜50g/L,丁二酰亚胺90g/L,三乙醇胺40g/L,柠檬酸20g/L,氢氧化钾60g/L,pH值9.0~9.5,温度20~30°C,电流密度2A/dm2,时间5min。再通过正交试验,得到较优的复合添加剂配方为:2-巯基苯并咪唑1.5mg/L,聚乙二醇10000 40mg/L。加入复合添加剂后,镀液的稳定性提高,电流效率、分散能力和覆盖能力分别为82.4%、75.0%和100.0%;镀层表面平整,结晶细致,结合力强,沿(111)晶面的取向更为明显。