聚甲基丙烯酸4［（4＇－硝基－1＇硫酰基苯）－1－羟烷氧基本基］酯的合成

new series of sulfur-contalning side chain liquid crystalline polymers were described. Mesomorphic side chains with methylene spacer in different length have been synthesized and their structures were identified by NMR, IR and MS.The liquid crystalline nature of the polymers was characterlzed by microscopy.The Polymers have liquid crystalline nature.     

高折光指数光学树脂的合成——相转移法合成不饱和硫醇酯单体的条件控制

采用正常的低温相转移催化（ＰＴＣ）和反滴碱溶液ＰＴＣ法分别合成了含硫双烯ＭＥＳＤＭＡ和单烯ＭＥＰＳＭＡ．１Ｈ ＮＭＲ分析证明ＭＥＳ中的杂质主要是由原料ＴＤＧ引入的．对含单个巯基的ＭＥＰＳ的正常ＰＴＣ酯化接枝双键，因存在巯基和不饱和双键的加成反应而导致失败．作者最终得到了折光指数在１６２５以上的ＭＥＳＤＭＡ／ＭＥＰＳＭＡ共聚物．     

2,2'-二[对-(β-羟基-乙氧基-)苯基]丙烷双甲基丙烯酸酯合成与纯化

以双酚A和氯乙醇为原料经Williamson反应制得中间体2,2'-二[对-(β-羟基-乙氧基-)苯基]丙烷,再以对甲基苯磺酸为催化剂、以对羟基苯甲醚为阻聚剂在减压条件下通过直接酯化法制备2,2′-二[对-(β-羟基-乙氧基-)苯基]丙烷双甲基丙烯酸酯.时终产物脱色纯化工艺也做了初步的探索.     

聚(甲基丙烯酸-乙二醇甲基丙烯酸酯)微固相萃取-超高效液相色谱-串联质谱法测定水中雌激素

制备了聚(甲基丙烯酸-乙二醇甲基丙烯酸酯)有机聚合材料用于微固相萃取吸附剂,结合超高效液相色谱-串联三重四级杆质谱,建立了膜保护微固相萃取快速测定水体中E1、E2、E3、EE2和BPA 5种典型雌激素的方法。详细研究了萃取条件和解析条件对萃取效果的影响。在优化实验条件下,E3的检出限为0.2μg/L,线性范围为1～500μg/L,其余4种目标物检出限为0.02μg/L,线性范围为0.1～500μg/L。相对标准偏差均小于7.4%。方法用于实际污水处理厂污水中痕量雌激素的测定,样品加标回收率大于83%。     

基于聚甲基丙烯酸酯类固相微萃取头的SPME-HPLC联用检测环境水样中的痕量芳香烃

建立了一种新型的聚甲基丙烯酸酯类整体柱固相微萃取的样品预处理方法,并与高效液相色谱法联用检测环境水样中的芳香烃。实验采用的固相微萃取材料聚(甲基丙烯酸丁酯-乙二醇二甲基丙烯酸酯)(Poly(BMA-EDMA))对芳香烃类化合物具有较高的萃取效率,优化了萃取时间、盐浓度、解吸时间等条件。5种芳香烃在10～100μg/L的范围内线性关系良好,检出限为0.012～1.316μg/L,相对标准偏差(n=6)为6.5%～18%。用该法分析湖水中的痕量芳香烃,除甲苯外,其他4种芳香烃的加标回收率为90.8%～99.8%。方法适用于快速分析环境水样中的痕量芳香烃。     

手性整体式毛细管液相色谱柱的制备与应用

采用紫外光引发模式制备了甲基丙烯酸酯类毛细管整体柱,通过控制光照精确地控制了柱床的长度及边界,将环糊精（β-CD）共价连接到了高分子聚合物链上作为手性选择剂,在碱性环境下以液相色谱模式实现了在人体的代谢反应中有着重要作用的FITC标记的D,L-苯丙氨酸的分离,理论柱效125000plates／m,并分析了流动相性质对分离的影响。     

聚合物载体-稀土金属配合物的研究IV.含亚硫酰基聚合物载体-稀土金属配合物的合成,表征及其催化活性

Styrene-2-(methylsulfinyl)ethyl methacrylate copolymer-supported MCl3 complexes, where M = La, Pr, Nd, Eu, Ho, Er, Tm, and Yb, were prepared and characterized by IR spectroscopy. The catalytic activity of the polymer-supported NdCl3-(iso-Bu)3Al system towards stereospecific polymerisation of butadiene was 2-3 times higher than that of NdCl3-(iso-Bu)3Al-DMSO system. The cis-1,4 content of polybutadiene formed was >98%.     

AN ATOMIC FORCE MICROSCOPY STUDY ON THE AGGREGATION OF ISOTACTIC POLY（METHYL METHACRYLATE）

Aggregation process of isotactic poly(methyl methacrylate) (i-PMMA) has been studied extensively for many years, and considerable progress has been made in both experimental and theoretical studies. They are, however, seldom sustained by real-space observations of the underlying morphology. In this paper, the aggregation process of i-PMMA in concentrated acetone solutions and the fractal structure of the resulting three-dimensional clusters were characterized on the basis of real-space AFM observations of their two-dimensional projection. It was found that spherical multiple-chain particles formed upon collapse and aggregation of the involving chains as a whole during quenching the solution to room temperature. By keeping the solution at room temperature, the initially formed particles stick together upon contact to form larger particles through reassembling very slowly. The succeeding collision of the enlarged spherical particles leads to the formation of small clusters. These newly formed small clusters grow when they meet with other clusters or single Brownian particles. This leads to the formation of large clusters with fractal dimension of 1.95$±0.05, which suggest a reaction-limited cluster aggregation of i-PMMA in a concentrated acetone solution. This is in accordance with the conclusion obtained by light scattering measurements.     

P(HPMA-FMA)荧光探针制备、细胞毒性评估及细胞吞噬示踪检测

以甲基丙烯酰氯、三乙胺和荧光素反应得到荧光素甲基丙烯酸酯(FMA),将其与聚N-(2-羟丙基)甲基丙烯酰胺(HPMA)以物质的量之比1∶10混合并通过引发剂偶氮二异丁腈(AIBN)引发聚合反应,生成带有荧光探针的聚合物P(HPMA-FMA)。采用台盼蓝排染法评估了该聚合物的细胞毒性,荧光显微镜和流式细胞仪观察和检测了全反式维甲酸(ATRA)诱导HL-60细胞分化过程中,P(HPMA-FMA)被细胞吞噬后的荧光示踪效应。结果表明:P(HPMA-FMA)的细胞毒性极低,当P(HPMA-FMA)的质量浓度为4~16mg/mL时对细胞增殖无影响;当其质量浓度为30μg/mL时即可满足荧光显微镜定性示踪观察和流式细胞术定量检测所需要的荧光强度。     

挂Aminonitro—Stilbene基团的聚甲基丙烯酸酯的合成及其非线…

报道了含ａｍｉｎｏｎｉｔｏ－ｓｔｉｂｅｎｅ 基因的甲基丙烯酸酯类单体的合成、该单体与ＭＭＡ的共 聚反应及对所得聚合物进行的非线性光学性能测定。对所得聚合的ＳＨＧ测定显示ｄａａ珂达到５４ｐｍ／ｖ．。