镧系金属化合物催化苯乙烯和双烯烃的共聚──苯乙烯和异戊二烯共聚合制备高顺式－1，4嵌段共聚物

采用稀土催化体系Ｎｄ（Ｆ_３ＣＯ_２）_３－ＢｒＣ_５Ｈ_（１１）－Ｒ_ｍＡｌＨ_（３－ｍ）（Ｎｄ－Ｂｒ－Ａｌ），以甲苯为溶剂，在５０℃恒温水浴中进行苯乙烯（Ｓｔ）和异戊二烯（Ｉｐ）共聚合。结果表明，由Ａｌ（Ｏｃｔ）－３组成的催化体系可制备以顺式－１，４结构为主的共聚物；在后者组成的催化体系中，当Ａｌ／Ｎｄ＝５（摩尔比，下同），Ｂｒ／Ｎｄ＝５时，聚合活性最高。经ＩＲ，ＮＭＲ检测表征了共聚物的微观结构。同时，用π－烯丙基型配位机理和返扣配位机理对实验结果进行了定性解释。     

钨系齐格勒－纳塔催化剂引发丁二烯－苯乙烯共聚合──Ⅰ．高乙烯基丁苯共聚物的合成

以ＷＣｌ_６（Ｗ）为催化剂，分别与四种烷基铝组成催化体系，以苯乙烯（Ｓｔ）、丁二烯（Ｂｄ）为单体，在６０～７０℃下聚合５ｈ，可获得高乙烯基丁苯共聚物。结果表明，以Ｗ－Ａｌ（ｉ－Ｂｕ）_２Ｃｌ（Ａｌ）组成的催化体系，在Ａｌ／Ｗ＝３．５（摩尔比），陈化３０ｍｉｍ以上时，活性最高，所得丁苯共聚物［η］＝０．２５～０．６５ｄＬ／ｇ，乙烯基含量大于５０％（摩尔），结合Ｓｔ含量为１０％～４０％（摩尔）。     

异戊二烯在TiCl_4－Al_2（C_2H_5）_3Cl_3体系上低聚的研究

本文介绍了异戊二烯在ＴｉＣｌ_４－Ａｌ_２（Ｃ_２Ｈ_５）_３Ｃｌ_３体系上的聚合过程、二甲基亚砜的作用及第三组分和催化剂选择性等因素的影响。     

WCl_6－Al（i－Bu）_2Cl催化丁二烯－苯乙烯共聚合──丁苯共聚物的结构组成和竞聚率测定

对丁苯共聚物的~１Ｈ－ＮＭＲ谱图进行了归属，并建立了计算其４种结构单元含量的方程式。当Ａｌ（ｉ－Ｂｕ）_２Ｃｌ／ＷＣｌ_６＝６（摩尔比）时，苯乙烯（Ｓｔ）单元含量最低，丁二烯（Ｂｄ）单元含量最高；Ｂｄ单元含量随Ｂｄ／Ｓｔ值的增加而提高，总的Ｓｔ单元含量随Ｂｄ／Ｓｔ值的增加而降低；聚合时间对单元含量的影响与Ｂｄ／Ｓｔ值的影响相似；提高聚合温度，Ｓｔ单元含量降低。用微分法求得转化率低于１０时Ｓｔ的竞聚率为４．７０，Ｂｄ的竞聚率为０．２７。     

酸性膦酸酯钕盐催化聚合丁二烯的研究

以酸性膦酸酯（Ｐ５０７）钕盐（Ｎｄ）、Ａｌ（ｉ－Ｂｕ）３（Ａｌ）和Ａｌ２Ｅｔ３Ｃｌ３（Ｃｌ）为催化体系，已烷为溶剂，进行丁二烯（Ｂｄ）溶液聚合。催化剂采用Ａｌ＋Ｎｄ＋Ｃｌ的加料方式，Ａｌ／Ｎｄ＝２０（摩尔比，下同），Ｃｌ／Ｎｄ＝３．０，室温下陈化２ｈ以上，于５０℃恒温水溶中聚合５ｈ，可得到顺式－１，４含量高于９７％，［η］大于９．０ｄＬ／ｇ的聚合物。同时证明，在相同的催化剂组分配比及聚合条件下，该     

二高氯酸四（2－羟基吡啶）二水合钴的单晶制备及结构分析

２－羟基吡啶（ＨＬ）、Ｔｂ（ＣｌＯ_４）_３·６Ｈ_２Ｏ和Ｃｏ（ＣＨ_３ＣＯＯ）_２·４Ｈ_２Ｏ在乙腈中反应，制备了［Ｃｏ（ＨＬ）_４（Ｈ２Ｏ）_２］（ＣｌＯ_４）_２，并且测定了它的晶体结构。［Ｃｏ（ＨＬ）_４（Ｈ_２Ｏ）_２］（ＣｌＯ_４）_２的晶体为单斜晶系，ｐ２１／ｎ空间群，晶胞参数为α＝０．９３１３（３）ｎｍｂ＝１．１５８６（１）ｎｍ，ｃ＝１．２９８４（２）ｎｍ，β＝９７．２４（２）°。［Ｃｏ（ＨＬ）_４（Ｈ_２Ｏ）_２］￣（２＋）为六配位畸变八面体构型，２－羟基吡啶的氧原子同钴配位。     

1－羟基－4－甲基－6－（2，4，4－三甲基戊基）－2－吡啶酮的高效液相色谱研究

本文采用高效液相色谱分离并确定了去屑止痒剂１－羟基－４－甲基－６－（２，４，４－三甲基戊基）－２－吡啶酮（以下简称ＨＭＴＰＰ）。在固定相３０１１－Ｏ柱上，以甲醇／水作流动相通过ＨＰＬＣ对保留性能进行了考察，结果表明当甲醇／水／ＨＣｌＯ＿４＝７５∶２５∶０．０５（Ｖ／Ｖ），在ＵＶ３００ｎｍ检测波长下，可实现ＨＭＴＰＰ的酸式总量测定。ＨＭＴＰＰ的线性范围为２．０～９２．０μｇ／ｍｌ，检测限为０．８０５μｇ／ｍｌ，酸式离解常数Ｋ＿ａ＝３．０５×１０－８。本方法具有分析速度快，重现性好等特点。     

镍、铬、铝交联蒙脱土催化剂的组成对1,2,3,5-四甲苯转化的影响

本文首次合成出一类未见报道的三元金属复合柱交联蒙脱土催化剂（Ｎｉ－Ｃｒ－Ａｌ－ＣＬＭ）。通过镍、铬的改变来调变催化剂的表面酸性与孔结构。用ｘ－射线粉末衍射、吡啶吸附红外光谱测定催化剂的层间距及表面酸类型，并对催化剂中柱化液的Ａｌ３＋、Ｃｒ３＋、Ｎｉ２＋离子的配比，Ａｌ／Ｃｌａｙ比与反应活性相关联，确定了催化剂的最佳组成：Ａｌ／Ｎｉ＋Ｃｒ＝２．０（摩尔比）；Ｎｉ／Ｃｒ＝３／１及Ｎｉ／Ｃｒ＝１／１；Ａｌ／Ｃｌａｙ＝３．０（毫摩尔／克）。     

非酸催化酯化合成对苯二甲酸二异辛酯的反应动力学

由对苯二甲酸与异辛醇在ＳｎＣｌ_２非酸催化剂作用下酯化合成了对苯二甲酸二异辛酯。研究了酯化反应的动力学行为，提出酯化反应的速率方程（－ｄＣ_Ａ）／（ｄｔ）＝ｋＣ_Ａ，反应表观活化能Ｅ＝４０．ｋＪ／ｍｏｌ，反应速率常数ｋ＝３．８２×１０~４ｅｘｐ（－４８３７／Ｔ）。     

胺对镍系催化了二烯聚合规律的影响

以二乙胺为例研究了胺对Ｎｉ（ｎａｐｈ）２－Ａｌ（－Ｂｕ）３－ＢＦ３·ＯＥｔ２＋ｎ—Ｃ８Ｈ１７ＯＨ（简称Ｎｉ－Ａｌ－Ｂ＋ＲＯＨ）和Ｎｉ（ｎａｐｈ）２－Ａｌ（ｉ－Ｂｕ）３－ＢＦ３·ＯＥｔ２＋ＣＨ３ＣＯＯＣ４Ｈ９（简称Ｎｉ—Ａｌ—Ｂ＋ＢＡ）两体系聚合活性和聚合物分子量的影响，并与Ｎｉ—Ａｌ—Ｂ体系进行了对比．考察了通常条件下肢的允许含量，讨论了有胺存在时Ｎｉ／Ｂｄ、Ａｌ／Ｎｉ、Ａｌ／Ｂ摩尔比的变化对聚合规律的影响。结果表明：胺的含量高于２０ｐｐｍ时将使聚合活性和分子量降低，提高催化剂用量可以抑制胺的不利影响。     

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.     

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.     

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。     

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.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.