丙烯酸酯印花黏合剂的偏二氯乙烯共聚改性

采用种子乳液聚合方法制备偏二氯乙烯(VDC)改性丙烯酸酯乳液,并制备印花黏合剂,测定印花织物性能。使用傅里叶变换红外光谱仪(FT-IR)、同步热分析仪(TG)及X线衍射仪(XRD)表征聚合物结构。结果表明:VDC与丙烯酸酯单体发生共聚反应,降低了材料的耐热性和规整性;当VDC占单体总质量的16%时,聚合物耐水性明显提高;乳化剂用量为体系质量的1.10%和引发剂为0.38%时,反应转化率超过98%;相应印花织物透气率、得色量及弯曲刚度均达到应用要求。     

Research on colored lyotropic liquid crystals

Splendidly colored lyotropic liquid crystals formed in the ternary system of a novel cationic surfactant, 3-p-nonylphenoxy-2-hydroxypropyl trimethyl ammonium bromide （NPTAB）-n-butanol-water system, had been observed under polarized light microscope. Small-angle X-ray scattering （SAXS）, ^2H （deuterium） quadrupolar splitting （^2H NMR） were employed to confirm the structures of these liquid crystals. The structural transformation of these special lyotropic liquid crystals had been confirmed by differential scanning calorimetry （DSC）. The influences of liquid crystal film thickness, temperature and conserving time on the color of liquid crystals have been investigated. It is also theoretically discussed for forming and changing of liquid crystal color.     

连续加料蒸馏法制备丙烯酰氯

介绍了以丙烯酸和三氯氧磷为原料，采用连续加料蒸馏法，制备丙烯酰氯的新方法。结果表明，连续加料蒸馏法制备丙烯酰氯，可效地减少聚合物的生成，从而减少阻聚剂的用量，提高产物得率和纯度。在丙烯酸与三氯氧磷摩尔比为1：1反应时，丙烯酸氯的得率达92．2％，纯度98．3％。     

合成二苯基卡巴腙的一种简便有效的新方法

二苯基卡巴腙（ＤＰＣ）是一种重要的有机分析试剂，本用ＦｅＣｌ３．６Ｈ２Ｏ／Ｈ２ＳＯ４作氧化体系在室温条件下对二苯基卡巴肼氧化脱氢、高产率地合成了二苯基卡巴腙，该方法具有反应条件温和、操作简便、原料价廉易得等优点。     

氯化铁催化合成己酸异戊脂的研究

It has been found that ferric chloride is superior to H2SO4 when used as catalyst for esterificatiou of isoamyl alcohol with hexauoic acid. The optimum reaction conditions in synthesis of isoamyl hexanoate catalyzed with ferric chloride are determined,with the yield at 87. 65％.     

热释发光在长余辉材料研究中的应用

从机理和实验两方面论述了热释光谱是长余辉材料研究中最主要、最常用的手段之一，并通过测量热释光谱对长余辉材料中的陷阱情况进行了分析对比，得到了陷阱深度可决定余辉长短的结论．     

氯化铁催化合成肉桂酸正丙酯

利用氯化铁为催化剂使肉桂酸和正丙醇酯化合成了肉桂酸正丙酯，其优化条件为ｎ（肉桂酸）∶ｎ（正丙酸）∶ｎ（Ｆｅ２Ｃｌ３·６Ｈ２Ｏ）＝１∶１０∶０．１，回流反应时间为５ｈ，产品收率９５％以上。     

3—苯氧基苯甲醛的合成工艺

以３－苯氧基甲苯为原料，在紫外光照射下进行侧链氯化转化为３－苯氧基－α，α－二氯甲基苯，经硫酸－醋酸水解得高纯度的３－苯氧基苯甲醛，总收率８０％￣８５％。     

一种新的光固化树脂齐聚物合成用催化剂

针对常规催化剂体积大、活性低、反应时间（t)长、粘度及残余量大等缺点，设计合成了一种新的催化剂-三乙基烯丙基氯化胺，以用于SL（StereoLithography)法光固化树脂专用齐聚物的制备，因为新的催化剂带有不饱和双键，所以在紫外光固化时可参与聚合，残余量少，并且其催化活性高，可在较低温度（80-90℃）及较短时间（2h)内完成反应，因此降低了体系的粘度。     

A magic eggshell: Cu<Superscript>2+</Superscript> reacts with S<Superscript>2−</Superscript> to produce metal Cu,rather than CuS

In common sense, the chemical reaction between Cu²⁺ and S^2– ions produces black precipitation of CuS. However, if they are separated by an eggshell, they produce copper with trace amount of CuS on the surface of the eggshell at the side of copper chloride solution within one week. Such an unexpected phenomenon strongly indicated that Cu²⁺ is able to be reduced into metal copper when S^2– diffuses throughout the porous eggshell. The produced copper was verified by reacting with nitric acid to generate red-brown nitrogen dioxide at ambient temperature, as well as by the powder X-ray diffraction (XRD) and energy dispersive analysis of X-rays (EDS).