鏈烯醇類 的英文怎麼說
中文拼音 [liànxīchúnlèi]
鏈烯醇類
英文
alkanols-
Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp. by gas chromatography - mass spectrometry ( gc - ms ) analysis
摘要採用氣相色譜質譜聯用分析技術從中新世水杉葉片和白堊紀松型球果兩種裸子植物化石中分別鑒定了51個和19個揮發性成分,類型涉及烷烴、烷烯、烷醇、長鏈脂肪酸及其酯、鄰苯二甲酸酯、菇類和芳香族化合物。The article analyze the concrete drying shrinkage mechanism, find the major factors of affecting the drying shrinkage, analyze the lack of shrinkage reducing agent, who be of low molecular weight and line chain, design a new shrinkage reducing agent ? ? shrinkage reducing agent of poly - acrylate. the shrinkage reducing agent of poly - acrylate is mainly composed of crylic acid 、 cinnamene 、 poly - glycol 、 solicitating agent 、 chain transferring agent and activator, which come by these processes of polymerization 、 esterifing and neutralization to form a pectinate polymer, which have a high molecular weight and many poly - oxidative alkenes
論文分析了混凝土乾燥收縮的機理,確定了影響乾燥收縮的關鍵因素,分析已有低分子量的、直鏈型減縮劑的不足,設計了一種新型的減縮劑? ?聚丙烯酸鹽類減縮劑,其主要由丙烯酸、苯乙烯、聚乙二醇、引發劑、鏈轉移劑、催化劑等經過聚合、酯化和中和反應,生成一種高分子量的、含聚氧化烯鏈的聚合物。
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