1－氰基－2－氮乙酰氨基环戊烯－1，2的合成研究

研究了用己二腈的副产品１－氨基－２－氰基环戊烯－１，２与乙酸酐反应合成１－氰基－２－氮乙酰氨基环戊烯－１，２。讨论了介质对合成反应的影响，介质不同，产品１－氰基－２－氮乙酰氨基环戊烯－１，２的收率不同。以蒸馏水为反应介质，产品收率为７７％；以乙酸酐为介质时，产品收率为８７．７％；以氯仿为介质，产品收率为８２．４％。     

立构嵌段聚丁二烯的研制Ⅳ．立构二嵌段与三嵌段共混聚丁二烯的研究

在以ｎ－Ｂｕｌｉ为引发剂，环己烷为溶剂，二哌啶乙烷和二乙基锌为调节剂的丁二烯负离子聚合过程中，采用高分子设计，分别以二甲基二氯硅烷、苯甲酸乙酯和乙酸乙酯为偶联剂，合成了不同分子量、不同嵌段比及共混比的１，４－１，２／１，４－１，２－１，４及１，２－１，４／１，２－１，４－１，２立构嵌段聚丁二烯（ＰＢ），考察了共混物的微观相分离、流变性及屈服强度。结果表明，嵌段共混ＰＢ的分子量、嵌段比、共混比值只有在一定范围时，共混物才产生微观相分离，分相的嵌段共混ＰＢ具有较好的流变性、加工性，较小的冷流性和较高的屈服强度。     

1—氰基—2—氮乙酰氨基环戊烯—1,2的合成研究

研究了用己二腈的副产品１－氨基－２－氰基环戊烯－１，２与乙酸酐反应合成１－氰基－２－氮乙酰氨基环戊烯－１，２。讨论了介质对合成反应的影响，介质不同，产品１－氰基－２－氮乙酰氨基环戊烯－１，２的收率不同。以蒸馏水为反应介质，产品收率为７７％；以乙酸酐为介质时，产品收率为８７．７％；以氯仿为介质，产品收率为８２．４％。     

立构嵌段聚丁二烯的研制 Ⅳ.立构二嵌段与三嵌段共混聚丁二烯的…

在以ｎ－ＢｕＬｉ为引发剂，环己烷为溶剂，二派啶乙烷和二乙基锌为调节剂的丁二烯负离子聚合过程中，采用高分子设计，分别以二甲基二氯硅烷、苯甲酸乙酯和乙酸乙酯为偶联剂，合成了不同分子量、不同嵌段比及共混比的１，４－１，２／１，４－１，２－１，４及１，２－１，４／１，２－１，４－１，２立构嵌段聚丁二烯（ＰＢ），考察了共混物的微观相分离、流变性及屈服强度。结果表明，嵌段共混ＰＢ的分子量、嵌段比、共混比值只有     

二甘醇或乙二醇连续催化合成1，4－二氧六环

采用连续法合成１，４二氧六环。以二甘醇为原料，温度２４０℃，催化剂初始浓度：硅钼酸３％，或硫酸铁３％，或硅钨酸银２％；连续补加浓度：硅钼酸１％，硫酸铁１％，硅钨酸银０５％；以乙二醇为原料，温度１９０℃，催化剂初始浓度：硅钼酸４％，或硫酸铁３５％，或硅钨酸银２％；补加浓度：硅钼酸１５％，硫酸铁１５％，硅钨酸银１％；控制塔顶温度为９５～１０５℃，反应速度快，产率较高。     

1，6－己二硫醇的合成研究

以１，６－二溴己烷为原料，合成了一种重要的鸡肉味香料１，６－己二硫醇，产率８５．０％。同时报道了一种简便的以１，６－己二醇为原料制备１，６－二溴己烷的方法，产率８９．５％。     

气体扩散─流动注射分光光度法测定水中氟

采用在线分离预浓集气体扩散，流动注射分光光度法测定水中氟，在４ｐｐｍＦ浓度下测得变异系数ＲＳＤ为１．２２％，采样频率为４０样次／小时，富集１ｍｉｎ检出限为０．１ｐｐｍ，回收率为１００．５％。     

1，6－己二硫醇的合成研究

以１，６－二溴己烷为原料，合成了一种重要的鸡肉味香料１，６－己二硫醇，产率８５．０％。同时报道了一种简便的以１，６－己二醇为原料制备１，６－二溴己烷的方法，产率８９．５％。     

立构嵌段聚丁二烯的研制 Ⅴ．立构三嵌段聚丁二烯的合成及动力学行为

以α－甲基萘锂（α－ＭＮＬｉ）为引发剂、二哌啶乙烷（ＤＰＥ）为调节剂、环己烷为溶剂的丁二烯负离子聚合体系，研究了ＤＰＥ／α－ＭＮｌｉ、聚合温度与聚合物１，２－结构含量关系，合成出１，２一结构近１００％的１，２－聚丁二烯（１，２－ＰＢ）和１，２－１，４－１，２－ＰＢ。反应动力学研究表明：１，４－ＰＢ与１，２－ＰＢ中单体浓度与反应速率呈一级方程关系；４０℃时，生成１，４－ＰＢ的反应动力学方程式为－ｄ［Ｍ］／ｄｔ＝０．２８［Ｃ］￣０．５［Ｍ］；ＤＰＥ用量增大，表观增长反应过度常数Ｋ＿ｐ￣η减小；求得不同条件下的表观增长活化能。     

2－丁氧基－5－（1，1，3，3－四甲基丁基）－苯硫酸的合成

以４－（１，１，３，３－四甲基丁基）－苯酚２为原料，通过３步合成了２－丁氧基－５－（１，１，３，３－四甲基丁基）－苯硫酚１。４－（１，１，３，３－四甲丁基）－苯酚２是由苯酚与二聚异丁烯（Ｄｉｉｓｏｂｕｔｙｌｅｎｅ）在硫酸存在下反应制得。３个化合物的结构以１ＨＮＭＲ予以表征。     

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。