聚合工艺对聚丙烯稳定性的影响

选取淤浆法（采用高效的ＨＹ－ＨＳⅡ型催化剂）ＰＰ树脂和间歇式液相小本体法ＰＰ树脂，通过贮存试验，加工稳定性试验，热烘箱老化试验和户外曝露试验，探讨了ＰＰ聚合工艺路线和残留于ＰＰ树脂中的微量催化剂对ＰＰ稳定性的影响。     

200kt／a聚丙烯装置的工艺特点及产品结构

介绍了２００ｋｔ／ａ聚丙烯装置的工艺特点及产品特性，重点介绍了该气相法ＰＰ装置的技术先进性，所采用的高效ＰＰ催化剂，独特的反应器设计和优良的产品性能。     

新型混凝剂聚磷氯化铁的制备及性能研究

在干法制备聚合氯化铁（ＰＦＣ）的过程中,加入没配比的磷酸盐,制得新型混凝剂聚磷氯化铁（ＰＰＦＣ）。通过混凝搅拌实验得到ＰＰＦＣ的最佳制备条件及最佳含磷量。将ＰＦＣ和ＰＰＦＣ分别对三种工业废水进行对比混凝实验,结果表明,ＰＰＦＣ对废水的ＣＯＤ和浊度去除率均优于ＰＦＣ。表明了ＰＯ４＾３－对聚合铁有增聚作用。     

由原子转移自由基聚合制备具有预期结构的聚丙二醇—苯乙烯接枝共聚物

以氯甲基化苯氧基聚丙二醇（ＣＭＰＰＧ）为大分子引发剂，ＣｕＣｌ／ｂｐｙ为催化体系研究了ＣＭＰＰＧ－ｇ－ＰＳ共聚物的合成。结果表明，该聚合过程具有活性聚合特征，借助１Ｈ－ＮＭＲ表征确认了接枝共聚物具有预期结构。     

用HIPS装置生产GPPS树脂

介绍了ＨＩＰＳ装置生产耐热度较高，符合ＧＢ１２６７１－９０的ＧＰＰＳ树脂产品工艺技术，探讨了提高树脂冲击强度和控制体指数的方法，考核了装置的生产能力。     

聚苯醚合金的研究进展

综述了第一代聚苯醚合金（ＰＰＯ／ＰＳ）和第二代聚苯醚合金（ＰＰＯ／ＰＡ、ＰＰＯ／ＰＢＴ、ＰＰＯ／ＰＰＳ等）的技术动向和研究进展,对今后合金的开发进行了展望。     

磺化丁苯橡胶离聚体与一些聚合物的熔融共混及产物性能

将磺化丁苯橡胶镁离子交联聚合体（简称离聚体）在增塑剂硬脂酸锌存在下分别与聚丙烯（ＰＰ）、高密度聚乙烯（ＨＤＰＥ）、丁苯嵌段共聚物（ＳＢＳ）、聚苯乙烯（ＰＳ）、顺丁橡胶（ＢＲ）在Ｂｒａｂｅｎｄｅｒ塑性仪密炼机中熔融共混，考察了共混比对平衡扭矩及物理机械性能的影响。结果表明，磺化丁苯橡胶镁离聚体与ＳＢＳ或ＰＰ共混，其拉伸强度呈协同效应，与ＨＤＰＥ共混呈加和效应，而与ＰＳ或ＢＲ共混则呈抵销效应。透射电镜     

小本体法聚丙烯产品质量问题探讨

讨论了小本体聚丙烯（ＰＰ）应用络合二型及ＣＳ－１型催化剂出现的产品质量问题，对粘料、结晶料、产品灰分含量及氯含量高、同批粉料熔融指数（ＭＩ）不同、小黑点料的形成原因进行了分析，并提出了控制这类质量问题的方法。     

(7-N,N-二甲氨基)香豆素基-3-甲酸乙酯/二芳基碘鎓盐光敏引发聚合反应体系

本工作合成了（７－Ｎ,Ｎ－二甲氨基）香豆素基－３－甲酸乙酯（ＥＤＡＣＦ）光敏剂．在光作用下,激发态的ＥＤＡＣＦ分子与二芳基碘盐ＯＰＰＩＰ分子之间发生电子转移反应,伴随发生ＥＤＡＣＦ的褪色反应和ＯＰＰＩＰ的光解反应,后者生成具有引发活性的芳基自由基．由于ＥＤＡＣＦ具有ＣＴ态特性,使得它与ＯＰＰＩＰ之间的光电子转移反应速度随着溶剂极性增加明显减慢．ＥＤＡＣＦ／ＯＰＰＩＰ体系可有效地引发ＭＭＡ聚合反应,聚合反应动力学方程为Ｒｐ＝Ｋ［ＯＰＰＩＰ］０．４７［ＥＤＡＣＦ］０．４２［ＭＭＡ］０．９８．     

炼油厂小本体聚丙烯的生产与技术现状

文章从原理、工艺及生产等各个方面对小本体ＰＰ装置作了详细的介绍，将近年开发的高效催化剂Ｎ型、ＣＳ－１型、ＳＣ型、ＺＨ型与传统的ＢＲ－Ⅱ型的应用情况作出系统的比较，论述了丙烯原料精制的原理、方法、工艺特点及作用，分析了ＰＰ生产当中存在的问题及根源。     

石油化工行业节能策略及在间歇式本体法聚丙烯工艺中的应用

根据石油化工行业用能的特殊性,从加强能量的高效转换和传输、先进工艺的开发与应用,能量回收与充分利用等方面说明化工行业的节能措施。同时以间歇式液相本体法聚丙烯生产工艺为例,对应地提出采用新型催化剂、实施智能控制、高效换热设备、传热设备的维护与清洗。并计算了采用预测性控制技术、U形冷却管替换指形内冷管和有机蒸汽膜回收丙烯等措施降低间歇式液相本体法聚丙烯生产工艺的能耗的效果,结果表明,这些措施能有效地降低聚丙烯生产能耗,提高经济效益。     

A Laboratory Reactor for Gas‐Phase Olefin Polymerization

A new reactor system for gas‐phase ethylene/α‐olefin polymerization is described. Good gas‐phase temperature control at high polymerization rates was achieved with the 2‐L semi‐batch reactor. Ethylene/1‐hexene and ethylene polymerization results showing the effects of operating conditions on temperature profiles are presented. Good gas‐phase temperature control is required to obtain reliable activity profiles. A gas‐sampling and analysis system, which allows relatively rapid (< 3 min) and accurate determination of ethylene/1‐hexene contents in the gas‐phase of the reactor, is also described. Rapid and reliable hydrogen contents were also measured with this relatively inexpensive system.     

稀土钕催化剂上丁二烯气相聚合过程研究

在２升的卧式双轴自清洁型搅拌床反应器对负载型稀土催化剂催化的丁二烯气相聚合过程进行了实验研究。考察反应温度和压力等因素对聚合速率和分子量及其分布的影响。确定了合适的反应条件并获得了有关的动力学参数。     

Radical Polymerization of n-BMA Using a Di-Site Phase Transfer Catalyst

The di-site phase transfer catalyzed radical polymerization of butyl methacrylate with the phase transfer catalyst N,N′-diheptyl-N,N,N′,N′-tetramethyl-1,2-ethanediammonium dibromide (DHTMEDADB) was carried out in an aqueous-organic biphase system at 60 ± 1°C under nitrogeneous atmosphere at fixed pH and ionic strength. A suitable kinetic scheme has been proposed and its significance was discussed. The polymers obtained were investigated and characterized (FTIR, ¹H-NMR and XRD studies).     

连续本体法ABS制备工艺进展

综述了连续本体法丙烯腈/丁二烯/苯乙烯(ABS)的制备工艺、接枝和相反转过程的工艺特征、调控粒径及改进性能的方法,指出各种制备工艺的共性和区别,总结出连续本体法ABS制备工艺的关键.     

稀土催化剂上丁二烯气相聚合的宏观动力学研究

The study of the kinetics of gas phase polymerization of butadiene with heterogeneous catalyst based on neodymium(Nd) was carried out.The effects of reaction temperature,reaction pressure,dispersing medium, and types of catalyst on kinetics of polymerization were investigated .A kinetic model with two kinds of active sites was proposed.The results show that the effects of the reaction temperature and the types of dispersing medium and catalyst on the kinetic performance of polymerization are significant,and that the combined model of first and second order decay of active site of catalyst can be used to describe the phenomena.     

Phase Transfer Catalyst-Induced Free Radical Polymerization of Acrylonitrile Using Water Soluble Initiator – A Kinetic Study

In this paper, we report the kinetics and mechanism of phase transfer catalyzed radical polymerization of acrylonitrile (AN) using potassium peroxydisulphate as water-soluble initiator. The polymerization was executed unstirred at 60°C under nitrogen atmosphere. The roles of concentration of monomer, initiator, catalyst, temperature and effect of solvent polarity were evaluated. Based on the results obtained, a viable kinetic scheme and mechanism have been proposed.     

丁二烯气相聚合动力学模型研究

以搅拌床反应器中负载型催化剂催化的丁二烯气相聚合动力学实验为基础,用失活行为不同的两种活性位组合失活模型模拟了丁二烯气相聚合的衰减型动力学行为。研究结果表明,用活性位的1级失活和1．5级失活的组合失活模型可以满意地描述聚合速率的衰减行为。     

Studies on Macro-kinetics of Gas Phase Polymerization of Butadiene with Rare-earth Catalyst

The study of the kinetics of gas phase polymerization of butadiene with heterogeneous catalyst based on neodymium (Nd) was carried out. The effects of reaction temperature, reaction pressure, dispersing medium, and types of catalyst on kinetics of polymerization were investigated. A kinetic model with two kinds of active sites was proposed. The results show that the effects of the reaction temperature and the types of dispersing medium and catalyst on the kinetic performance of polymerization are significant, and that the combined model of first and second order decay of active site of catalyst can be used to describe the phenomena.     

气相法乙烯聚合铬系催化剂的性能研究

在小试及中试实验中,将ＱＣＰ－０１气相法铬系聚乙烯催化剂与工业Ｇ催化剂进行聚合活性及产物性能的对比,结果表明,改进后的ＱＣＰ－０１催化剂的催化均聚活性、共聚性能及聚合产物的主要性能均与Ｇ催化剂相当。