血红素蛋白模拟（Ⅱ）—尾式噻吩基金属卟啉的合成与表征

探讨了一种新型尾式卟啉－５－邻（４－（２－噻吩甲氧基）丁氧基）苯基－１０,１５,２０－三苯基卟啉（简称ｏ－ＴｈｉｏＴＰＰ）的合成方法,以ｏ－ＴｈｉｏＴＰＰ为配体合成金属铁卟啉ｏ－ＴＰＰＦｅ（Ⅲ）Ｃｌ和金属锰卟啉ｏ－ＴｈｉｏＴＰＰＭｎ（Ⅲ）Ｃｌ。通过元素分析,质谱,紫外可见光谱,红外光谱,核磁共振氢谱和碳谱顺序磁共振波谱等手段对上述化合物进行了表征,结果表明,三阶金属卟啉处在高自旋状态,尾端噻吩没有     

溴化—四（N—十二烷基）对烟酰基苯卟啉的合成

合成了溴化－四（Ｎ－十二烷基）对烟酰基苯卟啉（ＴＤＮＡＰＰＢｒ）及其Ｚｎ（Ⅱ）、Ｃｏ（Ⅱ）两种配合物。测定了其红外、紫外光谱。三种卟啉制成Ｌ－Ｂ膜，测定了膜的崩溃压和分子面积。     

新试剂meso－四（3－氯－4－磺基苯）卟啉光度法测定痕量钯的研究

研究了新试剂ｍｅｓｏ－四（３－氯－４－磺基苯）卟啉（ｍ－ＣｌＴＰＰＳ４）与钯的显色条件，建立了一种高灵敏光度法测钯的方法。在适当条件下，Ｐｄ（Ⅱ）与ｍ－ＣｌＴＰＰＳ４形成稳定的１∶１（Ｍ∶Ｌ）配合物，其最大吸收波长为４１４ｎｍ，表观摩尔吸光系数可达１．９×１０５Ｌ·ｍｏｌ－１·ｃｍ－１。该方法应用于催化剂中痕量钯的测定。     

新型尾式谷氨酸四苯基卟啉锰(Ⅲ)催化烯烃环氧化研究

研究了新型尾式谷氨酸四苯基卟啉锰（Ⅲ）［Ｍｎ（Ｇｌｕ－ＴＰＰ）Ｃｌ］与锌粉（Ｚｎ）、乙酸（ＣＨ３ＣＯＯＨ）、分子氧（Ｏ２）和咪唑（Ｉｍ）组成的氧化模拟体系催化烯烃的环氧化反应。测定了氧化反应体系吸氧动力学曲线。结果表明,体系的最高吸氧速度高达１．５ｍＬ·ｍｉｎ－１,环氧化产物收率（Ｚｎ％）可达５９．２％。     

薄层光谱电化学方法对DMSO溶液中O2与CoTPP相互作用的研究

循环伏安常规的光谱检测手段无法揭示非水溶剂中Ｏ２与ＣｏＴＰＰ的相互作用，本实验采用薄层光谱电化学方法揭示Ｏ２与ＣｏＴＰＰ的相互作用为Ｃｏ（Ⅰ）ＴＰＰ＋Ｏ２＝Ｃｏ（Ⅱ）ＴＰＰ＋Ｏ２，由于非水溶剂中Ｃｏ（Ⅱ）／Ｃｏ（Ⅰ）与Ｏ２／Ｏ２的氧化还原电位非非常接近，所以ＣｏＴＰＰ对Ｏ２的还原没有催化作用。     

尾式甲氧苯基卟啉及其Fe(Ⅲ)配合物的合成与表征

本文所报道的是一种新型尾式卟啉化合物——5-对[4-（间吡啶氧基）丁氧基]苯基-10,15,20-三对甲氧苯工卟啉及其Fe(Ⅲ）配合物的合成。并通过元素分析、红外光谱、核磁共振谱及紫外可见光谱等对其结构进行了表征。     

甲苯基卟啉和金属卟啉的制备

采用二甲苯为溶剂，对硝基苯甲酸催化，苯甲醛和吡咯反应合成四苯基卟啉（ＴＰＰ），产率可灰５５．４％；另外，用ＤＭＦ为溶剂，ＴＰＰ与醋酸锌反应生成金属卟啉锌（ＴＰＰＺｎ），产率可达９７．６％。     

四苯基卟啉和金属卟啉的制备

采用二甲苯为溶剂,对硝基苯甲酸催化,苯甲醛和吡咯反应合成四苯基卟啉（ＴＰＰ）,产率可达５５４％;另外,用ＤＭＦ为溶剂,ＴＰＰ与醋酸锌反应生成金属卟啉锌（ＴＰＰＺｎ）,产率可达９７６％。     

苯酚锰（Ⅲ）四苯基卟啉配合物的合成光谱性质和催化加氧反应

合成了两种新的化合物Ｃ６Ｈ５ＯＭｎ（Ⅲ）ＴＰＰ和Ｃ６Ｈ５ＯＭｎ（Ⅲ）ＴＰＰ．ＴＨＦ。测定了它们的元素组成，可见吸收光谱，红外光谱和氧化还原电位，发现它们均具有催化氧化环己烯的能力。     

不对称卟啉化合物的合成及其与氨基酸甲酯的作用

本文合成了含有单取代酰胺基的不对称卟啉及其锌（Ⅱ）络合物Ｚｎ（ｍ,２－ＣＮＴＰＰ）及Ｚｎ（ｍ,３－ＣＮＴＰＰ）．对三氯甲烷溶液中它们与谷氨酸二甲酯、亮氨酸甲酯以及苯丙氨酸甲酯的作用进行了系统的研究,讨论了卟啉化合物对氨基酸甲酯分子的结合能力、结合方式,以及二者之间的多种存在形式．结果表明,锌卟啉与氨基酸甲酯以１：１的化学计量结合,中心金属锌（Ⅱ）离子和氨基酸甲酯中的氨基配位,卟啉环上的取代基与氨基酸甲酯中的残基可形成氢键、范德华力等弱相互作用．在卟啉和氨基酸甲酯的作用中,氨基与金属离子直接配位,α－碳上的质子靠近卟啉环平面,而酯基中的甲氧基处于远离卟啉环平面的位置．     

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。