结论：分析得知，2 ，3-环氧基团是最重要的负电中心；
Conclusions The 2,3-epoxy group is the most important negative charge center in the molecules.
合成了既有环氧基团又含不饱和双键的环氧丙烯酸单酯树脂。
A dual-curing epoxy monoacrylate resin was synthesized, which contain both epoxide groups and unsaturated double bonds.
通过红外光谱对SBS的环氧化产物中环氧基团的存在进行证实。
The epoxy group of epoxidation product of SBS has been proved by IR.
高聚物收率可达76.72%，体系中的环氧基团约70%被保留下来。
The productive rate can achieve 76.72% and 70% of epoxy group remained.
研究了含环氧基团丙烯酸酯液体橡胶对环氧树脂三乙醇胺固化体系的增韧作用。
Toughening of epoxy resin by modification with acrylate liquid rubber containing pendant epoxy groups was investigated.
利用SBS中丁二烯软段中的双键进行环氧化反应，引入环氧基团进行化学改性。
The double bonds of the butadiene soft matrix in SBS were epoxidized in order to incorprate the epoxy groups and modify chemically.
采用化学改性法，选择多官能团酚醛环氧树脂(F—51)与二乙醇胺进行定量加成反应，合成了一种在分子结构上既具有环氧基团，又具有亲水性基团的改性树脂。
According to the molecule design, a kind of modified resin which have both epoxy groups and hydrophilic groups was synthesized from polyfunctional group novolac epoxy resin (F-51) and diethanolamine.
本论文立足于合成一种新型的含有双键的高性能环氧树脂——二烯丙基双酚A型环氧树脂(DADGEBA)，并对该环氧树脂的基本性能及双键与环氧基团双固化的特性进行了研究。
This thesis bases on synthesizing a novel high performance epoxy resin (DADGEBA) containing double bonding and deeply study on the basic performance and double-curing behavior of epoxy DADGEBA.
介绍了含活性基团(环氧基、长链烷基等)硅橡胶球形微粉的制备、硅橡胶球形微粉水分散液的制备。
The preparation of spherical powder of silicone rubber, whose active groups are epoxy group and dodecyl, are introduced, as well as the preparation of its aqueous dispersions.
值得注意的是， 这种糖片段上有芳环取代的烷酰氧基基团的麦角甾烷型甾体糖苷为真菌中首次报道。
It is worth while to note that the steroidal glycoside possessing an aromatic ring substituted alkanoyl group at its glucose moiety was found for the first time in fungi .
值得注意的是， 这种糖片段上有芳环取代的烷酰氧基基团的麦角甾烷型甾体糖苷为真菌中首次报道。
It is worth while to note that the steroidal glycoside possessing an aromatic ring substituted alkanoyl group at its glucose moiety was found for the first time in fungi .
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