硫酸法催化合成双酚芴的研究

以98%的浓硫酸作为催化剂合成双酚芴进行研究,分别对催化剂用量、助催化剂用量、反应时间、反应温度、酚酮摩尔比等主要因素对反应的影响,进行了试验,试验结果表明,使用浓硫酸催化合成双酚芴,最优条件下双酚芴的反应收率98.20%。制备双酚芴的最佳工艺条件为:酚酮摩尔比6:1,反应温度45℃,反应时间3h,催化剂浓硫酸用量为8.5mL/0.333mol芴酮,助催化剂β-巯基丙酸用量为0.25mL/0.333mol芴酮。     

Polychlorinated dibenzo-p-dioxins and dibenzofurans in flue gas emissions from municipal solid waste incinerators in China

Polychlorinated dibenzo-p-dioxins and furalls(PCDD/Fs)emissions in flue gas from two types of municipal solid waste incinerators(MSWIs)most commonly used in China were investigated in this study.The selected incinerators include two grate-type MSWIs:MSWl-A(350 t/d)and MSWI-B(150 t/d),and two fluidized bed MSWIs:MSWI-C(400 t/d) and MSWI-D (400 t/d),which are all equipped with semi-dry lime scrubber and bag filter except MSWI-D equipped with cyclone and wet scrubber(WS)as air pollutant conffol device(APCD).Results indicated that the emission concentration and the international toxic equivalents(I-TEQs)of the PCDD/Fs from the stacks were in the range of 1.210～10.273 ng/Nm3 and 0.019～0.201 ngI-TEQ/Nm3,respectively.They were greatly lower than the emission regulation standard of PCDD/FS in China(1.0 ng I-TEQ/Nm3).However,only the PCDD/Fs emission Ievel from MSWI-C Was below 0.1 ng I-TEQ/Nm3.Although the homologue profiles were distinct,the contributions of the 2,3,7,8-subsituted congenem to the total I-TEQ were similar among all the investigated MSWIs.Two major 2,3,7,8-substituted congeners,2,3,4,7,8-PeCDF and 1,2,3,7,8-PeCDD,account for 47% and 9%(average values)of the total I-TEQ values,respectively.The correlation between PCDD/Fs levels and composition of flue gas Was also discussed.     

Polychlorinated dibenzo-p-dioxins and dibenzofurans in flue gas emissions from municipal solid waste incinerators in China

Polychlorinated dibenzo-p-dioxins and furans （PCDD/Fs） emissions in flue gas from two types of municipal solid waste incinerators （MSWIs） most commonly used in China were investigated in this study. The selected incinerators include two grate-type MSWIs： MSWI-A （350 t/d） and MSWI-B 050 t/d）, and two fluidized bed MSWIs： MSWI-C （400 t/d） and MSWI-D （400 t/d）, which are all equipped with semi-dry lime scrubber and bag filter except MSWI-D equipped with cyclone and wet scrubber （WS） as air pollutant control device （APCD）. Results indicated that the emission concentration and the international toxic equivalents （I-TEQs） of the PCDD/Fs from the stacks were in the range of 1.210-10.273 ng/Nm^3 and 0.019-0.201 ng I-TEQ/Nm^3, respectively. They were greatly lower than the emission regulation standard of PCDD/Fs in China （1.0 ng I-TEQ/Nm^3）. However, only the PCDD/Fs emission level from MSWI-C was below 0.1 ng I-TEQ/Nm^3. Although the homologue profiles were distinct, the contributions of the 2,3,7,8-subsituted congeners to the total I-TEQ were similar among all the investigated MSWIs. Two major 2,3,7,8-substituted congeners, 2,3,4,7,8-PeCDF and 1,2,3,7,8-PeCDD, account for 47% and 9% （average values） of the total I-TEQ values, respectively. The correlation between PCDD/Fs levels and composition of flue gas was also discussed.     

发光层厚度对红光磷光聚芴电致发光性能的影响

文章采用喹啉氮杂环类锒配合物[（PPQ）2Ir（acac）]为客体,以聚芴和2-（4-二苯基）-5-（4-叔丁基苯基）-1,3,4-噁二唑（PBD）为主体,研究了不同发光层厚度对有机电致发光器件性能的影响．随着发光层厚度的增加,相同电压下器件的电流密度和发光亮度逐步减小,表现出明显的电荷捕获机制．当厚度达到70nm时,得到了发光亮度为1792cd／m^2,发光效率为6．16cd／A的高性能红光器件．     

9,9-二[4-（2-羟乙氧基）苯基]芴的合成工艺研究

以9-芴酮和乙二醇苯醚为原料,以浓硫酸为催化剂、β-巯基丙酸为助催化剂合成了9,9-二[4-（2-羟乙氧基）苯基]芴（BHEPF）,并对其结构进行了表征和确认。探讨了合成过程中反应温度、9-芴酮和乙二醇苯醚的摩尔比、反应时间、催化剂浓硫酸的用量及助催化剂β-巯基丙酸的用量对BHEPF收率的影响,得出了其最适宜的工艺条件,在该条件下,BHEPF的收率为75%。     

改性双酚芴丙烯酸酯的合成

改性丙烯酸酯是一种具有高折射率、耐黄变等性质的光学树脂材料单体,以芴酮、2-苯基苯酚、2-氯乙醇、丙烯酰氯等原料通过三步反应进行制备,同时针对催化剂、物料比、加料方式、合成路线及产品就纯化等因素进行了优化,确定了最佳的合成条件.     

红光磷光染料掺杂聚芴电致发光器件的研究

采用喹啉氮杂环类铱配合物[（PPQ）2Ir（acac）]为客体,以聚芴和2-（4-二苯基）-5-（4-叔丁基苯基）-1,3,4-噁二唑（PBD）为主体,研究了红光磷光有机电致发光的性质.样品的吸收光谱和发射光谱的结果表明（PPQ）2Ir（acac）和聚芴掺杂体系可以发生从主体到客体的有效Fo¨rster能量转移.然而,器件的电致发光光谱与样品的光致发光谱出现了明显的不同.在相同掺杂浓度下,前者更能实现纯的红光发射.这个结果表明,除了能量转移之外,客体的电荷捕获也是实现器件红色发光的原因之一.当（PPQ）2Ir（acac）掺杂浓度为1.0 wt%时,我们在10 V工作电压下得到了发光亮度为1 792 cd/m2,发光效率为6.16 cd/A的高性能红光器件.     

含活泼亚甲基多环芳烃与N-溴代丁二酰亚胺的光氧化反应研究

研究了芴和二苯甲烷等含活泼亚甲基多环芳烃在连续通氧的条件的与N－溴代丁二酰亚胺（NBS）的光氧化反应，提供了温和条件下筒便制备芳酮的方法。结果表明，芴的转化速度大于二苯甲烷的转化速度，但芴酮的选择性却低于双苯酮，实验对有关的反应机理也作了初步探讨。     

9-苯基-9-羟基-4,5-二氮杂芴水合物的合成与表征

由格氏试剂与4,5-二氮杂-9-芴酮反应合成了标题化合物C17H12N2O·H2O,并通过X-射线衍射法确定了其晶体结构。在每个不对称单元中包括两个有机分子和两个水分子,每个分子中两个4,5-二氮杂芴环几乎在一个平面上,4,5-二氮杂芴环平面与相应苯环平面的二面角分别是80.49(6)°和76.57(7)°。并且,由于桥联溶剂水分子的存在,使得整个晶体通过O—H…N和O—H…O氢键堆积而成为三维的网状立体结构。     

合成mPEG咪唑啉碘及其Pd催化制备芴衍生物

聚乙二醇单甲醚甲基咪唑啉碘盐(L)是聚乙二醇单甲醚(mPEG750)经磺酰化、碘化之后再与1-甲基咪唑反应得到,研究它在钯催化芳基硼酸和2,7-二溴芴衍生物的Suzuki偶联反应中的催化活性,结构经核磁共振表征为预期化合物.