以液体聚硫聚脲齐聚物来增韧环氧-聚酰胺体系,用DMTA和SEM研究了固化后环氧树脂的形态结构、相分离程度和增韧效果。
The measurement of DMTA and SEM was used to study the morphology and structure of the cured epoxy, identifying the degree of phase segregation and the effect of toughening in the cured epoxy.
对葫环联脲主体分子的合成、分子识别、超分子催化、分子组装等领域的新近研究进行了较为详尽的综述。
The recent research progress of cucurbituril including synthesis of cucurbituril and their derivatives, their molecular recognition, supramolecular catalysis, molecular assembly was reviewed.
用途:甲环亚硝脲的中间体。亦可用作溶剂。
Uses: a Plaza Premium intermediate urea nitrate. Can also be used as a solvent.
四环素类、大环内酯类、喹诺酮类抗生素是治疗解脲支原体感染的主要有效药物。
Tetracyclines macrolides and quinolones are the effective antibiotics in the treatment of these diseases.
葫环联脲这类新型主体分子正受到化学家们的广泛关注,并逐渐成为超分子化学研究领域中的一个热点。
Cucurbituril, as a novel synthetic receptor, has attracted considerable attentions of chemists. The supramolecular chemistry of cucurbituril gradually turns into a hot field.
所有患儿于放疗后接受长春新碱、环己亚硝脲、顺铂方案化疗,所有患者均未行鞘内化疗。
Chemotherapy was given according to the protocol which consisted of lomustine, cisplatinum and vincristine after radiotherapy, but the patients were not given intrathecal chemotherapy.
进一步根据药物设计的开环原理,用氨基脲片段替代氨基杂环,得到新型的氨基脲类抑制剂。
Furthermore, according to the ring-open principle, semicarbazide moiety was used to replace amino heterocycle to get semicarbazide derivatives.
甲环亚硝脲的中间体。
甲环亚硝脲的中间体。
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