环氧树脂改性磺化聚苯乙烯离聚物的合成与性能研究

用浓H2SO4、环氧对脂先后与废旧聚苯乙烯（PS）反应，研究了反应温度，催化剂用量对反应速度的影响，以及磺酸基含量，环氧树脂配比量对涂膜性能的影响，确定了合成反应的最佳条件：环氧基／磺酸基＝0．7：1．0，反应温度110℃，催化剂用量1％，转化率可达95％。     

聚环氧琥珀酸及其盐的制备方法

本发明公开了一种聚环氧琥珀酸及其盐的制备方法，属于聚环氧琥珀酸及其盐的制备技术。该方法采用顺丁烯二酸酐为原料，制备过程包括顺丁烯二酸酐的溶解、以钨酸钠为催化剂，在氢氧化钠存在下与过氧化氢进行环氧化合成环氧琥珀酸钠盐，再加入氢氧化钙，同时用氢氧化钠调节体系至pH=10～13进行聚合合成聚环氧琥珀酸钠盐。该钠盐经酸化还可以得到聚环氧琥珀酸。本发明的优点在于，得到的产物中钙离子含量低于0.3％，该产品可以直接用于工业水处理中作为阻垢剂、分散剂、缓蚀剂，在洗涤剂、清洗剂、去污剂中作为金属离子的螯合剂等，并且产品无毒无味，能长期稳定保存。     

用环氧环己烷制备不饱和聚酯树脂的研究

介绍了用环氧环己烷合成了不饱和聚酯树脂，并将其与通用聚酯树脂（ＵＰＥ）进行物化性能方面的比较。结果表明，用环氧环己烷合成的树脂具有主好的耐酸，耐碱，耐热性能和较好的机械性能。     

加压无溶剂法制备环氧玉米油

首次报道玉米油在无溶剂加压条件下，经甲酸—双氧水环氧化，一步合成环氧玉米油。产品为微黄色油状透明液体，环氧值６．２％～６．４％，碘值不大于３ｍｇＩ／ｇ，转化率为精油的１０４％～１０６％。     

用环氧环己烷制备不饱和聚酯树脂的研究

介绍了用环氧环己烷合成不饱和聚酯树脂， 并将其与通用聚酯树脂（ ＵＰＥ） 进行物化性能方面的比较。结果表明， 用环氧环己烷合成的树脂具有良好的耐酸、耐碱、耐热性能和较好的机械性能。     

水溶性衣康酸环氧酯合成新工艺

国内材料界重视优异材料环氧树脂及其应用的研发，最近又有水溶性衣康酸环氧酯树脂合成的新工艺面世，用该环氧酯树脂可制成新型水溶性环氧灌浆材料。     

聚氨酯树脂及其涂料：200601024 一种木器用的聚氯醋哑光白面漆

200601019 抗粉化环氧树脂；200601020 由碧玉制得的功能环氧树脂组合物；200601021 彩涂板用环氧底漆的研制；200601022 单组分的胺基，环氧型室温固化乳液涂料树脂及合成方法；200601023 双组分的胺基，环氧型室温固化乳液涂料树脂及合成方法。     

二段减压间歇精馏分离环氧环己烷的研究

对无溶剂法合成的环氧环己烷，针对环氧环己烷具有高度的光敏、热敏等不稳定特点，采用添加乙二醇-丁醚作为重组分进行二段减压间歇精馏的方法进行了分离纯化，环氧环己烷的纯度达99．5％，单程环氧环己烷的收率85％。实验优化了精馏的操作方式和操作条件，为新方法工业化的分离工艺部分的工程设计提供了基本依据。     

热敏性物料环氧环己烷的精馏

针对无溶剂法双氧水氧化环己烯合成环氧环己烷的油相反应液，采用常压精馏的方法对其进行了分离纯化，并得到了常压精馏操作的较佳工艺条件。在此工艺条件下，环氧环己烷的纯度和单程收率分别达到99.59％和85.87％，对常压精馏后的塔釜高沸点残留物进行减压精馏回收后，环氧环己烷总收率可以达90％以上，为其工业化生产提供重要的实验...     

光敏酚醛环氧丙烯酸酯的合成工艺

本文以丙烯酸和F-44环氧树脂为原料，合成了一种既含有环氧基又含有丙烯酸基的光敏酚醛环氧丙烯酸酯树脂。研究了催化剂种类、催化剂用量、反应时间、反应温度对丙烯酸转化率的影响。结果发现，以三乙胺作催化剂，反应温度为95℃，催化剂用量为树脂质量的2％，酯化反应在6h之内完成所合成的树脂制成的涂膜具有优良的力学性能、耐溶剂性能和耐酸碱性能。用FT—IR对所合成树脂的结构进行了表征。     

Rubber-toughening epoxy thermosets with epoxidized crambe oil

Epoxidized crambe oil and rapeseed oil were synthesized by reaction of the oils with m-chloroperoxybenzoic acid. Formulating the neat epoxidized oils with epoxy-amine systems gave two-phase thermosets with epoxidized crambe oil, but not with epoxidized rapeseed oil. Glass transition temperature, mechanical properties, and fracture toughness of the epoxidized crambe oil thermoset specimen were measured. Fracture toughness values of the epoxy thermosets were increased approximately 100% by both 5 and 10% epoxidized crambe oil. Glass transition temperature and mechanical properties were affected only modestly.     

Epoxidation of oleic acid with oxygen in the presence of benzaldehyde using heterogenized homogeneous co-type ion-exchange membrane as catalyst

The epoxidation of oleic acid with oxygen in the presence of benzaldehyde to produce epoxidized oleic acid using a Co-type ion-exchange membrane as catalyst was carried out. No leakage of cobalt ion was found during the experimental runs. The epoxidized oleic acid was formed by a series of free radical reactions. Experimental results show that at 70% conversion of oleic acid, 60% of the total theoretical epoxidized oleic acid was obtained, illustrating the high selectivity (86%). The rate-determining steps were experimentally identified and the formation rate of epoxidized oleic acid was found.     

Effects of Vegetable Oil Composition on Epoxidation Kinetics and Physical Properties

In this article, we investigate the role of triacylglycerol composition on the properties of epoxidized vegetable oils and the kinetics of the epoxidation process under conditions comparable to commercial epoxidation. Commodity soybean oil (24% oleic acid, 50% linoleic acid, and 7% linolenic acid), high‐oleic soybean oil (75% oleic acid, 8% linoleic acid, and 2.5% linolenic acid), and linseed oil (11% oleic acid, 15% linoleic acid, and 64% linolenic acid) were each epoxidized to various extents. Epoxidation rate, viscosity, differential calorimetry, and X‐ray diffraction data are presented for these oils and interpreted in the context of their fatty acid profile (mostly oleic, linoleic, or linolenic). While fully epoxidized soybean oil is widely commercially available and used in an increasing array of industrial applications, information relating to partially epoxidized oils and epoxidized oils of other cultivars is less well known.     

Studies in the thermal degradation of poly(vinyl chloride)

Thermal degradation of poly(vinyl chloride) (PVC) was studied in nitrogen atmosphere in the presence of rubber seed oil and epoxidized rubber seed oil, barium and lead soaps of rubber seed oil, and epoxidized seed oil at various temperatures. The rate of dehydrochlorination at 1% degradation and the time required to attain 1% degradation were used to assess the effect of the thermal susceptibility of PVC to dehydrochlorination. It was found that epoxidized rubber seed oil, the metal soaps of rubber seed oil, and epoxidized rubber seed oil markedly enhance the thermal stability of PVC. The order of increasing stabilizing influence was metal soaps of epoxidized rubber seed oil > metal soaps of rubber seed oil > epoxidized rubber seed oil > rubber seed oil. © 1993 John Wiley & Sons, Inc.     

Synthesis and characterization of low viscous and highly acrylated epoxidized methyl ester based green adhesives derived from linseed oil

Both epoxidized linseed oil and transesterified epoxidized linseed oil were acrylated to form UV curable bio-based oligomers. The synthesis was confirmed by FTIR and ¹H NMR and oxirane oxygen content (OOC). The OOC value of epoxidized linseed oil was determined to be 8.2 % which was reduced to 8.0 % after transesterification confirming the retaining of epoxy groups. The lower OOC of acrylated epoxidized linseed oil (AELO) (2.1 %) and acrylated epoxy methyl esters (AEME) (0.9 %) revealed successful acrylation. The degree of acrylation in AEME was higher (~ 90 %) than AELO (~ 77%) and most importantly, the viscosity of AEME was much lower than AELO revealing better processability for industrial use.     

Alkoxylation of epoxidized polyisoprene by opening of oxirane rings with alcohols

Alkoxylation of epoxidized polyisoprene catalyzed by cerium ammonium nitrate (CAN) was achieved under very mild conditions both in melt and in solution. The cleavage of the epoxidized units with alcohols leads to the formation of alkoxyalcohol units and epoxide rearrangement units in the case of 20 and 38 % epoxidized 1,4‐polyisoprenes. For higher percentage of epoxidation (72 %), cyclization of epoxidized units is observed, which dramatically reduces the alcohol grafting percentage onto the polymer chains. The glass transition temperature increase with the percentage of alkoxylation is attributed to both alkoxy and hydroxyl groups formed after the ring opening of the epoxidized units. However, size‐exclusion chromatography analysis of the modified polymers showed a decrease in the number‐average molecular weight and an increase in the weight‐average molecular weight, which can be interpreted as the degradation and crosslinking of the polymer chains, respectively. Copyright © 2004 Society of Chemical Industry     

Water-blown rigid and flexible polyurethane foams containing epoxidized soybean oil triglycerides

Both rigid and flexible water-blown polyurethane foams were made by replacing 0–50% of Voranol® 490 for rigid foams and Voranol® 4701 for flexible foams in the B-side of foam formulation by epoxidized soybean oil. For rigid water-blown polyurethane foams, density, compressive strength, and thermal conductivity were measured. Although there were no significant changes in density, compressive strength decreased and thermal conductivity decreased first and then increased with increasing epoxidized soybean oil. For flexible water-blown polyurethane foams, density, 50% compression force deflection, 50% constant force deflection, and resilience of foams were measured. Density decreased first and then increased, no changes in 50% compression force deflection first and then increased, increasing 50% constant force deflection, and decreasing resilience with increase in epoxidized soybean oil. It appears that up to 20% of Voranol® 490 could be replaced by epoxidized soybean oil in rigid polyurethane foams. When replacing up to 20% of Voranol® 4701 by epoxidized soybean oil in flexible polyurethane foams, density and 50% compression deflection properties were similar or better than control, but resilience and 50% constant deflection compression properties were inferior. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

环保型改性水性丙烯酸树脂的研制

用环氧脂肪酸酯对水性丙烯酸树脂进行改性,研究了环氧脂肪酸酯的用量、加料方式、反应温度及中和度等因素对其性能的影响。研究结果表明,当环氧脂肪酸酯在反应前期加入,用量为6％-9％（占总单体质量分数）,反应温度为110～115℃,中和度为110％时,改性树脂具有较好的成膜性能和优异的物理机械性能,并且比用E-44改性的水性丙烯酸树脂更加稳定,可以长时间存放。     

Chemical epoxidation of a natural unsaturated epoxy seed oil fromVernonia galamensis and a look at epoxy oil markets

Since 1963, production of all epoxy esters has ranged from 60 to 150 million lb annually, a steady 7% of the 1 to 2 billion lb of annual plasticizer production. Growth rates in production averaged 4.3% for all plasticizers, 3.8% for all epoxy esters and 5.0% for epoxidized soybean oil (ESBO). ESBO accounted for 70–76% of total epoxy ester production (1963–1982). The natural liquid epoxy oil fromVernonia galamensis seed, with oxirane value (4.1%) and viscosity (100 cps) similar to some commercial epoxy fatty esters but with molecular weight similar to epoxidized vegetable oils, combines some of the properties of both commercial types. Chemical epoxidation ofVernonia oil raises the oxirane content to 8.2, intermediate between ESBO and epoxidized linseed oil (ELSO), while consuming less of the costly epoxidizing reagents. Epoxidation proceeds in stepwise fashion through partially epoxidized products, which are converted to final product. Since the major fatty components ofVernonia oil arecis-12,13-epoxy-9-octadecenoic (75%) and linoleic (13%) acids, further epoxidation produces fatty acids that are specifically epoxidized at the 9,10- and 12,13-positions, and the major product has 6 epoxy units per triglyceride molecule. The resulting mixture of products has compositional and physical properties distinctly different from commercial samples of ESBO and ELSO.     

Physical properties of water‐blown rigid polyurethane foams from vegetable oil‐based polyols

Fifty vegetable oil‐based polyols were characterized in terms of their hydroxyl number and their potential of replacing up to 50% of the petroleum‐based polyol in waterborne rigid polyurethane foam applications was evaluated. Polyurethane foams were prepared by reacting isocyanates with polyols containing 50% of vegetable oil‐based polyols and 50% of petroleum‐based polyol and their thermal conductivity, density, and compressive strength were determined. The vegetable oil‐based polyols included epoxidized soybean oil reacted with acetol, commercial soybean oil polyols (soyoils), polyols derived from epoxidized soybean oil and diglycerides, etc. Most of the foams made with polyols containing 50% of vegetable oil‐based polyols were inferior to foams made from 100% petroleum‐based polyol. However, foams made with polyols containing 50% hydroxy soybean oil, epoxidized soybean oil reacted with acetol, and oxidized epoxidized diglyceride of soybean oil not only had superior thermal conductivity, but also better density and compressive strength properties than had foams made from 100% petroleum polyol. Although the epoxidized soybean oil did not have any hydroxyl functional group to react with isocyanate, when used in 50 : 50 blend with the petroleum‐based polyol the resulting polyurethane foams had density versus compressive properties similar to polyurethane foams made from 100% petroleum‐based polyol. The density and compressive strength of foams were affected by the hydroxyl number of polyols, but the thermal conductivity of foams was not. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007