取代苯磺酰氨基丙基杂氮硅三环化合物的合成

通过取代苯磺酰氯和γ-氨丙基杂氮硅三环的亲核取代反应，合成了苯磺酰氨基丙基杂氮硅三环、p-甲基苯磺酰氨基丙基杂氮硅三环、p-氯代苯磺酰氨基丙基杂氮硅三环、p-溴代苯磺酰氨基丙基杂氮硅三环、m-硝基苯磺酰氨基丙基杂氮硅三环5种取代苯磺酰氨基丙基杂氮硅三环类化合物；用IR和^1HNMR等方法对其结构进行了表征，并初步探讨了反应条件。     

取代杂氮硅三环化合物的合成研究

讲述了杂氮硅三环化合物的性质与硅原子上所连接的有要取代基R有很大关系，R为不同基团时，形成杂氮硅三环的条件有所不同，生成化合物的性质也不同。     

1—烷氧基杂氮硅三环化合物的合成及研究

通过乙氧基杂氮硅三环上基团的交换反应，合成了5种烷氧基杂氧硅三环化合物，并初步探讨了反应条件的影响，认为选择KOH固体为催化剂、丙酮作溶剂可以使反应更充分；适宜的湿度能够避免副反应的发生；从反应体系中不断蒸出乙醇的方法有利于反应的进行。     

杂氮硅三环化合物

杂氮硅三环是一类具有特殊分子结构和显著生物活性的有机硅化合物，其研究进展迅速，而且越来越受到人们的重视，本文杂氮硅环三环化合物的合成、结构、生物活性及应用情况作了简要的论述。     

杂氮硅三环化合物

杂氮硅三环是一类具有特殊分子结构和显著生物活性的有机硅化合物，其研究进展迅速，而且越来越受到人们的重视。本文对杂氮硅三环化合物的合成、结构、生物活性及应用情况作了简要的论述     

杂氮硅三环的性质及应用研究概述

综述了近年来杂氮硅三环化合物的研究进展。简要介绍了杂氮硅三环的毒性、生物活性、抗肿瘤性、防锈和摩擦性等方面的性质及其在医药、农业、工业等领域的应用。     

甲基,氯甲基取代杂氮硅三环的红外光谱研究

利用高分辨傅里叶变换红外光谱法（ＦＴ－ＩＲ）研究甲基、氯甲基取代杂氮硅三环类有机硅化合物的结构特征，并指认ＮＳｉ配位键的吸收峰位置，给出其它官能团的吸收峰位的归属     

三芳基锗取代丙烯酸与乙氧基三氧杂氮杂硅杂三环[3,3,3,0^1.5]十二碳烷的反应

用β－三芳基锗－α（β）－取代丙酸与1－乙氧基－2,8,9－三氧杂－5－氮杂－1－硅杂三环[3,3,0^1.5]十一碳烷反应,合成了2种含硅锗的双金属有机化合物,利用IR,NMR和MS表征了化合物的结构和裂解机制,生物活性测定表明,其杀菌活性具有一定 的选择性。ββ     

杂氮硅三环化合物的合成与生物活性

综述了近10年来杂氮硅三环化合物的合成方法和生物活性研究进展，并简要介绍了生物活性和化合物结构的关系。     

含杂氮硅三环的取代芳酰基硫脲化合物的合成及杀菌活性

以取代苯甲酸为原料，经过氯化、异硫氰酸酯化，再与氨丙基杂氮硅三环反应，合成了10种含杂氮硅三环的取代芳酰基硫脲化合物。用IR-1HNMR和元素分析确认了产物的结构，并对其杀菌活性进行了测试。结果表明，所有化合物对植物病原茵都有较好的抑制作用，对黄瓜灰霉菌的抑制效果最高可达98％。     

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。