1·The results show that the hydroxymethyl content of resinous crosslinking agent and HCl content of neoprene activator will considerably effect on cured IIR compound performance.
试验结果表明：树脂交联剂的羟甲基含量和氯丁胶中的盐酸含量对丁基硫化胶质量有很大的影响。
2·The structures of these compounds were determined as friedelin(1), 5 hydroxymethyl furaldehyde(2), limonin(3), nomilin(4), daucosterol(5)by spectral methods.
经光谱数据的分析，分别鉴定为木栓酮（1）、5 羟甲基糠醛（2 ）、柠檬苦素（3）、闹米林（4 ）及胡萝卜苷（5 ） 。
3·Methods:Chloroform being solvent, under bath heat, 4 hydroxymethyl caged bicyclic phosphate acylated with pentanoyl chloride and hexanoyl chloride dividedly.
方法：用氯仿作溶剂，在浴温条件下，4 羟甲基笼状双环磷酸酯分别与戊酰氯、己酰氯发生酰化反应。