新型席夫碱及其Cu(Ⅱ)、Co(Ⅱ)配合物的合成及其催化性质研究

以菲-9,10-二酮、邻氨基苯酚、乙酸铜和乙酸钴为原料合成了标题化合物,席夫碱配体及其配合物通过NMR、元素分析、MS、IR和UV-Vis进行了组成和结构表征,并考察了席夫碱及其配合物对双氧水的催化分解性能。结果表明,席夫碱Cu(Ⅱ)、Co(Ⅱ)配合物对双氧水分解具有优异的催化活性。     

不对称席夫碱Cu(Ⅱ)配合物的合成和催化性能研究

用2,4-二羟基苯乙酮、二胺基硫脲与取代水杨醛反应,合成了3种不对称席夫碱配体及其Cu(Ⅱ)配合物,通过元素分析、1HNMR、IR、UV-vis、MS等手段对配体及其配合物进行了组成和结构表征,并研究了不对称席夫化合物对双氧水的催化分解性能。结果表明,合成得到的不对称席夫碱Cu(Ⅱ)配合物对催化H2O2分解具有较好的催化性能。     

N，N’二（3-硝基亚水杨基）-2，6-吡啶二氨及其过渡金属配合物的合成与表征

合成了N,N＇二（3-硝基亚水杨基）-2,6-吡啶二氨席夫碱及其Cu（Ⅱ）,Ni（Ⅱ）,Zn（Ⅱ）,Mn（Ⅱ）的配合物,用元素分析、IR、摩尔电导和电子光谱对所得化合物进行了表征,对席夫碱配体进行^1H NMR和MS表征,给出了化合物可能的空间结构。     

含邻氨基苯甲酸新型三核席夫碱化合物的合成与表征

以邻氨基苯甲酸、3-羧基水杨醛、乙酸铜和乙酸锌为原料合成了新型Cu2+、Zn2+三核席夫碱配合物。以氯仿和无水乙醇做溶剂,在pH7~8的条件下顺利合成得到了新型Cu2+、Zn2+三核席夫碱配合物,并对它们的合成条件分别进行了探索性实验,确定了合成它们的各自优化条件。产品通过元素分析1、H NMRI、R、UV和MS进行组成和结构表征。     

含醚链桥联的新型大环席夫碱化合物的合成与表征

以烷基二溴（即1,2-二溴乙烷,1,4-二溴丁烷,1,6-二溴己烷）、水杨醛、邻苯二胺为原料合成了系列醚链桥联大环席夫碱配体（H2L＊）及其Zn（Ⅱ）配合物,通过元素分析、1HNMR、红外光谱、紫外光谱、摩尔电导、质谱等手段对醚链桥联大环席夫碱配体及其配合物进行组成和结构表征。关键词大环化合物席夫碱合成表征     

微波固相法合成邻苯二甲酸锌、铜配合物

以邻苯二甲酸(H2phth)、乙酸锌或乙酸铜为原料,通过微波固相法合成了邻苯二甲酸锌、铜配合物Zn(phth).2H2O和Cu(phth).H2O,用化学分析、元素分析、傅里叶变换红外光谱、X射线粉末衍射、热分析对配合物的组成和结构进行了表征。结果表明,邻苯二甲酸配体中的羧基以双齿桥式与Zn(Ⅱ)或Cu(Ⅱ)结合形成配合物,其热分解包括失水、配体的氧化分解过程,最后完全分解为金属氧化物。     

丙二酰肼席夫碱及其金属配合物合成与表征

合成了丙二酰肼缩双水杨醛席夫碱配体及与Cu(Ⅱ)、Ni(Ⅱ)和Zn(Ⅱ)的金属配合物。用元素分析、IR、摩尔电导和电子光谱对所有化合物进行了表征．对席夫碱配体还进行了^1HNMR和MS结构表征．给出了化合物可能的空间结构。     

对硝基苯甲异羟肟酸-过渡金属配合物催化双氧水降解甲基橙

采用对硝基苯甲异羟肟酸为配体,与Co(Ⅱ)、Cu(Ⅱ)、Mn(Ⅱ)、Ni(Ⅱ)、Fe(Ⅲ)氯化物配位制备了系列配合物。通过红外光谱法(IR)和循环伏安法对合成的配合物进行了分析,推断了配合物可能的结构,并将其用作催化剂催化双氧水氧化降解甲基橙,考察这些金属配合物的催化氧化性能和影响条件。     

水杨醛缩乙醇胺Schiff碱及其铜、钴、锌配合物合成与抑菌活性探究

合成了水杨醛缩乙醇胺席夫碱及其Cu（Ⅱ）、Co（Ⅱ）、Zn（Ⅱ）六种配合物,并采用滤纸片扩散法测定六种配合物对黑曲霉、木霉、木质层孔菌、尖镰孢菌黄瓜专化型四种菌种的抑菌作用。结果表明：配合物Ⅰ和Ⅴ对四种菌种均具有较强的抑菌效果。     

表面活性剂对对羟基苯甲醛缩对氨基苯甲酸席夫碱Cu（Ⅱ）配合物形貌的影响、

为了实现特定形貌席夫碱配合物的制备,以对羟基苯甲醛缩对氨基苯甲酸席夫碱为配体,同醋酸铜反应并添加表面活性剂,制备了对羟基苯甲醛缩对氨基苯甲酸席夫碱Cu（Ⅱ）配合物,考察了表面活性剂十二烷基硫酸钠（SDS）和十六烷基三甲基溴化铵（CTAB）对生成的对羟基苯甲醛缩对氨基苯甲酸席夫碱Cu（Ⅱ）配合物形貌的影响。扫描电镜（SEM）研究表明,十二烷基硫酸钠使配合物形貌效果最好,为规整的仙人球型,并进一部探讨了表面活性剂对配合物形貌的影响机理。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。