N，N－二乙基二硫代氨基甲酸聚氯乙烯酯引发甲基丙烯酸甲酯的光接枝交联聚合反应

用铜试剂（Ｎ，Ｎ－二乙基二硫代氨基甲酸钠）取代聚氯乙烯中的部分氯原子制备了Ｎ，Ｎ－二乙基二硫代氨基甲酸聚氯乙烯酯（ＰＶＣ－ＳＲ），研究了紫外光照下ＰＶＣ－ＳＲ引发甲基丙烯酸甲酯（ＭＭＡ）的聚合反应，考察了光照时间、单体浓度、ＰＶＣ－ＳＲ用量及官能度的影响．结果表明，ＰＶＣ－ＳＲ能有效地引发ＭＭＡ聚合，其产物是交联型接枝聚合物，且具有高接枝率和接枝效率。     

N,N—二乙基二硫代氨基甲酸聚氯乙烯酯引发甲基丙烯酸甲…

用铜试剂（Ｎ，Ｎ－二乙基二硫代氨基甲酸钠）取代聚氯乙烯中的部分氯原子制备了Ｎ，Ｎ－二乙基二硫代氨基甲酸聚氯乙烯酯（ＰＶＣ－ＳＲ），研究了紫外光照下ＰＶＣ－ＳＲ引发甲基丙烯酸甲酯（ＭＭＡ）的聚合反应，考察了光照时间、单体浓度、ＰＶＣ－ＳＲ用量及官能度的影响。结果表明，ＰＶＣ－ＳＲ能有效地引发ＭＭＡ聚合，其产物是交联型接枝聚合物，且具有高接枝率和接枝效率。     

菊花微量及宏量元素分析

用ＩＣＰ－ＡＥＳ法测定了药用野菊花和抗白菊及６种人工栽培菊花中Ａｓ，Ｂ、Ｂａ、Ｃａ、Ｃｄ、Ｃｏ、Ｃｕ、Ｆｅ、Ｍｇ、Ｍｎ、Ｍｏ、Ｎｉ、Ｐｂ、Ｓｅ、Ｓｉ、Ｖ、Ｚｎ、Ｐ、Ｓ、Ｋ等元素的含量。结果表明：（１）菊花中Ｃａ、Ｍｇ、Ｐ、Ｓ、Ｋ含量很高，Ｂ、Ｆｅ、Ｍｎ、Ｚｎ也有较高的含量；（２）野菊花中Ｂ、Ｃａ、Ｆｅ、Ｍｇ含量较其他品种高、，抗白菊中Ｍｎ、Ｓｅ、Ｓ含量高地其他品种；（３）代栽培的菊花Ｋ、Ｐ含量高于     

THE CHIRAL SELECTIVITY IN ACROSS－MEMBRANE TRANSPORT OF 1，2－DIAMINOCYCLOHEXANE PLATINUM（II）COMPLEXES AND THE CONTRIBUTION OF LEAVING GROUPS

ＴＨＥＣＨＩＲＡＬＳＥＬＥＣＴＩＶＩＴＹＩＮＡＣＲＯＳＳ－ＭＥＭＢＲＡＮＥＴＲＡＮＳＰＯＲＴＯＦ１，２－ＤＩＡＭＩＮＯＣＹＣＬＯＨＥＸＡＮＥＰＬＡＴＩＮＵＭ（ＩＩ）ＣＯＭＰＬＥＸＥＳＡＮＤＴＨＥＣＯＮＴＲＩＢＵＴＩＯＮＯＦＬＥＡＶＩＮＧＧＲＯＵＰＳ￥...     

POM／EVA共混物的研究

用力学测试、扫描电镜（ＳＥＭ）、热分析（ＤＳＣ）等手段研究了聚甲醛（ＰＯＭ）与乙烯－醋酸乙烯酯共聚物（ＥＶＡ）共混物（ＰＯＭ／ＥＶＡ）的力学性能及其微同形态；用聚甲醛与马来酸二丁酯（ＤＢＭ）的接枝物（ＰＯＭ－ｇ－ＤＢＭ）作相溶剂，能改变共的两相间的粘结力，从而提出了共混物的力学性能，ＳＥＭ观察表明接枝物的加入改变了ＰＯＭ／ＥＶＡ共混物的断裂方式，微观形态及结晶性能，对其热性能影响不大；通过改变ＰＯ     

分离富勒烯的新型高效液相色谱固定相

从分子结构与分子间作用力的关系出发，以富电子性化合物甲苯、α－二甲苯、α－甲基萘修饰的聚苯乙烯－二乙烯苯（ＰＳ－ＤＶＢ）树脂作为固定相分离Ｃ６０、Ｃ７０混合物，获得很好的结果，其中以α－甲基萘修饰ＰＳ－ＤＶＢ和为固定相分离效果最理想。     

非多孔树脂的高效液相色谱填料及其对蛋白质的分离性能

合成并表征了粒度为７μｍ的基于聚（甲基丙烯酸甲酯／二乙烯苯）（ＰＭＭＡ／ＤＶＢ）和在丙烯酸丁酯／二乙烯苯）（ＰＢＭＡ／ＤＶＢ）的两种非多孔树脂。该类树脂可用作高效液相色谱填料的基质，也可直接用于色谱分离。ＰＭＭＡ／ＤＶＢ树脂对于蛋白质的分离具有疏水怀相互作用色谱填料的性能，而ＰＢＭＡ／ＤＶＢ树脂由于其强疏澡性则对于蛋白质的反相色谱是适宜的。基质树脂经ＮａＯＨ溶液水解，就转化成表面含羧甲基的并具有相     

紫精的负离子对耐水的紫精—聚合物膜的光致变色性能的影响

将含不同负离子的苄基紫精分散在混合有ＰＶＰ的ＭＭＡ－ＨＥＭＡ共聚物基质中可制成耐水的光致变色膜。它们的光致变色速度的大小随紫精负离子的不同而有如下序列：Ｖ６（ＰＦ６＾－）〉Ｖ５（ＢＦ４＾－）￣Ｖ４（ＣｌＯ４＾－）〉Ｖ３（ＣＨ３－苯环－ＳＯ３＾－）〉Ｖ２（Ｂｒ＾－）￣Ｖ１（Ｃｌ＾－）。这与这些紫精在ＤＭＦ中的溶解度以及在共聚物基质中的溶解性大小的序列相一致。负离子对这些光致变色膜在空气中的氧化退色速     

致孔剂对HP（MA—VAc—MMA）载体孔结构的影响

以二乙烯苯和双丙烯酸多缩乙二醇酯为交联剂、聚醋酸乙烯酯（ＰＶＡｃ）或它与醋酸丁酯（ＢＡＣ）的混合物为致孔剂、ＢＰＯ为引发剂，用悬浮聚合随后水解的方法制得了部分水解聚（丙烯酸甲酯－醋酸乙烯酯－甲基丙烯酸甲酯）［ＨＰ（ＭＡ－ＶＡｃ－ＭＭＡ）］多孔载体，研究了ＰＶＡｃ及（ＰＶＡｃ＋ＢＡＣ）用量、分子量及混合比对ＨＰ（ＭＡ－ＶＡｃ－ＭＭＡ）孔结构的影响。结果表明，当ＰＶＡｃ的Ｍ＞２．５×１０５，ＰＶＡｃ／ＢＡＣ为２．３，用量为１０～２０％时，可制得孔隙率较高，孔径分布较窄，孔表面积较大的多孔载体。这种载体适用于微生物固定化。     

LASER-ENHANCED ELECTROCHEMICAL DOPING OF POLY (N-VINYLCARBAZOLE)

ＬＡＳＥＲ－ＥＮＨＡＮＣＥＤ　ＥＬＥＣＴＲＯＣＨＥＭＩＣＡＬ　ＤＯＰＩＮＧ　ＯＦ　ＰＯＬＹ　（Ｎ－ＶＩＮＹＬＣＡＲＢＡＺＯＬＥ）ＬＡＳＥＲ－ＥＮＨＡＮＣＥＤＥＬＥＣＴＲＯＣＨＥＭＩＣＡＬＤＯＰＩＮＧＯＦＰＯＬＹ（Ｎ－ＶＩＮＹＬＣＡＲＢＡＺＯＬＥ）Ｙａ...     

8—羟基喹啉树脂的制备及应用研究进展

本文总结了国内外关于8－羟基喹啉螯合树脂的制备方法,树脂性能及其应用。     

Recent development on bio-based thermosetting resins

Due to the rapid depletion of crude oil and serious environmental pollution, the synthesis of polymers from renewable resource is becoming more and more important. Up to now, a great variety of biomass and bio-based platform compounds have been taken to prepare the polymers. However, as two representative thermosetting resins, epoxy and benzoxazine resin derived from renewable feedstocks only obtain limited attention compared with the popular bio-based plastics, including PLA, PBAT and PHBV etc. The reason might be that the properties of previously reported thermosetting resins directly obtained from biomass are usually unsatisfied, and their application fields are limited. In this paper, the latest development on the synthesis of high-performance bio-based epoxy and polybenzoxazine resins are reviewed. In addition, to further broaden their applications, the functionalization strategies are also summarized. The objective of this work is to help us fully aware the present situation of bio-based thermosetting resins and then promote their faster development, especially practical application.     

Polyacrolein-isonicotinic acid hydrazone and polyacrylic acid-thiohydrazide resins-synthesis and sorption properties for precious and base metals

This investigation carries on previous studies on polyacrolein-styrene resins. Further attempts were made to convert the reactive aldehyde groups of the polymeric support to functional acrolein-isonicotinic acid hydrazone (P-NHZ) or acrylic acid-thiohydrazide derivatives (P-THZD). The conditions of synthesis and the basic sorption and desorption properties of the polymers synthesized are described. For gold and platinum group metals the resins show differences in loading capacities, rates of simultaneous sorption in static conditions and efficiencies in column tests. The elution by thiourea solution was utilized to separate Au, Pd and Pt from an excess of base metals. The P-NHZ resin seems to be more advantageous than the sulfur containing P-THZD resin.     

硅炔杂化树脂改性有机硅树脂及其复合材料的性能

用一种硅炔杂化树脂聚（甲基硅烷-二乙炔基苯）（PSP）改性有机硅树脂（HS）,通过FT—IR和TGA研究了树脂体系的固化反应及耐热性,并对制备的复合材料进行力学性能、耐热性能和介电性能研究。结果表明：当HS与PSP的质量比为5：5时综合性能最优,树脂体系在氮气氛围下质量损失5％时的温度（T幽）为691℃,1000℃时质量保留率为88％;HS—PSP树脂短切玻纤复合材料冲击强度为21kJ／m^2,弯曲强度为65MPa,200℃时的弯曲强度高温保留率为78％,介电常数为4．6,介电损耗因数为7．9×10,体积电阻为6．7×10^13Ω。改性后的复合材料具有优异的力学、耐热和介电性能。     

苯氧树脂增韧双酚A环氧树脂的研究

以双官能团环氧树脂和双酚Ａ为单体，制备高分子量苯氧树脂，通过ＦＴＩＲ对其分子结构进行分析后，将１０ｗｔ％苯氧树脂加入到Ｅ－４４环氧树脂中，用ＤＳＣ冲击仪和ＳＥＭ等对增韧效果的分析测定，固化反应活化能降低９％，冲击强度提高６３．２％，玻璃化温度提高了２８℃。     

磺化三聚氰胺甲醛树脂与金属钙离子的复合物对水泥的作用

研究了磺化三聚氰胺甲醛树脂（SMF）与金属钙离子的复合物SMF-Ca^2 对水泥的作用,从对水泥吸附、水化等研究结果表明,SMF和Ca^2 间存在着一定的化学作用。在水泥砂浆中加入SMF-Ca^2 复合物比加入纯的SMF树脂能使减水率、抗压强度、抗折强度获得更大的提高。     

Studies on the synthesis and curing of epoxidized novolac vinyl ester resin from renewable resource material

Cardanol-based epoxidized novolac vinyl ester resin (CNEVER) was synthesized by reacting cardanol-based epoxidized novolac (CNE) resin and methacrylic acid (MA) (CNE:MA molar ratio 1:0.9) in presence of triphenylphosphine as catalyst at 90 °C. The CNE resin was prepared by the reaction of cardanol-based novolac-type phenolic (CFN) resin and epichlorohydrin, in basic medium, at 120 °C. The CFN resin was synthesized by reacting cardanol (C) and formaldehyde (F) (C/F ratio = 1:0.7) with p-toluene sulphonic acid (PTSA) as catalyst (0.5 wt.%) at 120 °C for 7 h. The resin products were analyzed by Fourier-transform infra-red (FTIR) and nuclear magnetic resonance (NMR) spectroscopic analysis. The number-average molecular weight of the prepared CNEVER was found to be 859 gmol⁻¹ as determined by gel permeation chromatographic (GPC) analysis. The resin was cured by using the mixture of resin, benzoyl peroxide, and styrene at 120 °C. The CNEVER resin was found to be cured in 60 min at 120 °C. Differential scanning calorimetric (DSC) technique was used to investigate the curing behaviour. Single step mass loss in dynamic thermogravimetric (TG) trace of CNEVER was observed. Thermal stability of the vinyl ester sample containing 40 wt.% styrene was the highest amongst all other prepared systems.     

硼酸盐固化酚醛树脂

硼酸与多元醇的络合反应已被用于硼酸浓度的滴定分析、硼选择性树脂等[1 ] 。Ecolotec树脂是一种用硼酸盐固化的碱性酚醛树脂 ,制备时以KOH溶液为溶剂 ,以硼砂为交联剂 ,通入CO2 降低溶液 pH值而交联 ,因其固化快、无污染 ,可用作铸造用冷芯盒树脂砂粘结剂。加入硅烷偶联剂与增塑剂能大幅度提高树脂砂固化后的抗拉强度[2 ] ,以碱金属氧化物与氢氧化物作为促硬剂 ,也可以提高树脂砂强度[3] 。赵鹏等[4] 合成了G盐改性酚醛树脂 ,由该树脂得到的树脂砂固化后 2 4h强度高于Ecolotec树脂。谭晓明等[5 ,6] 发现 ,树脂与硼酸根离子的配位反应是…     

不同温度处理的糠醇和聚苯胺树脂碳化产物结构基因变化的红外光谱研究

红外光谱测试结果表明糖醇树脂碳化过程中五员杂环上的碳氧键首先发生断裂,使氧脱出,而剩余的双烯链状结构再进行重排,形成六员稠环结构,并在此基础上发生脱氢反应生成石墨微晶。测试结果还表明聚苯胺树脂中的氮在碳化过程中的稳定性与其相连结的基团结构有密切关系。苯环相连的氮比与苯酚基相连的氮具有更强的抗热解稳定性。聚苯胺碳化产物中的氢主要分为两大类：一类是以碳氢键的形式存在;另一类则是以氮氢键的形式存在。碳化产物中的氢主要是在苯的稠环结构上以碳氢键形式存在。     

蛇笼树脂

蛇笼树脂作为一种有特异性能的离子交换树脂,发展较快。本文就该树脂的定义、特点、类型、合成方法及应用实例等的近期发展进行了较详细的分析和综述。