It was studied on the curing activity of DCPD phenol epoxy resin with anhydrides and amines.
研究了DCPD酚环氧树脂与酸酐及胺类固化剂的固化反应活性。
Other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids;
其他饱和非环一元羧酸及酸酐、卤化物、过氧化物及过氧酸；
The analysis results revealed that good separability of alicyclic anhydrides could obtain on OV-17 column.
分析结果表明，这四种脂环族酸酐均能在OV - 17毛细管色谱柱上获得很好的峰形和分离效果。
Dicyclopentadiene dioxide was hardly cured by amines or acid anhydrides alone, but can be well cured by acid anhydrides mixed with alcohols.
二氧化双环戊二烯难于被胺或单独的酸酐所固化，但能很好的被酸酐与醇所固化。
More particularly, the invention relates to the use of one or more cyclic anhydrides or substituted cyclic anhydrides as the reactive carrier.
更具体而言，本发明涉及一种或多种环酸酐或取代环酸酐作为活性载体的用途。
The amidation and esterification of different cyclic anhydrides with aniline and phenol gave different major products, and the routes were optimized.
研究了环酐与苯胺和苯酚的酰胺化及酯化反应，优化了酰胺化及酯化反应条件。
METHODS The CCK-4 peptides were condensed from N-protected Trp, met, Asp and C-protected Phe by Mixture anhydrides method, resulting in total yield of 38.5%.
方法以N -保护的色氨酸、甲硫氨酸、天门冬氨酸和C -保护的苯丙氨酸为原料，采用混合酸酐法合成了CCK四肽，总收率38.5%。
Peptides are traditionally synthesized in liquid phase, such methods are DCC, mixed anhydrides, acyl chloride and azide etc. , which provide more choices for peptides synthesis.
传统的肽类合成多采用液相化学合成，常用的包括碳二亚胺法，混合酸酐法、酰氯法、叠氮物法等等，为多肽的合成提供了多种选择。
The RG Dipeptides were condensated from N-protected Arg and C-protected Gly by mixed anhydrides method. Then Asp and RG Dipeptides were synthesized RGD Tripeptides in liquid phase.
由N-保护的精氨酸、C-保护的甘氨酸采用混合酸酐法缩合成RG二肽，再与天冬氨酸在液相中合成RGD三肽。
The RG Dipeptides were condensated from N-protected Arg and C-protected Gly by mixed anhydrides method. Then Asp and RG Dipeptides were used synthesize RGD Tripeptides in liquid phase.
由N -保护的精氨酸、C -保护的甘氨酸采用混合酸酐法缩合成RG二肽，再与天冬氨酸在液相中合成RGD三肽。
The reaction with dicarboxylic acid anhydrides results in an acid addition product, which alters the ratio of free basic to free acidic groups in gelatin, so as to lower the isoelectric point.
而二元酸酐酰化反应可改变氨基、羧基的比例，从而降低了明胶的等电点。
The reaction with dicarboxylic acid anhydrides results in an acid addition product, which alters the ratio of free basic to free acidic groups in gelatin, so as to lower the isoelectric point.
而二元酸酐酰化反应可改变氨基、羧基的比例，从而降低了明胶的等电点。
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