烯醇型脂 的英文怎麼說
中文拼音 [xīchúnxíngzhī]
烯醇型脂
英文
enolic ester type-
Preparation of air drying acrylic modified alkyd resin
自干型丙烯酸改性醇酸樹脂制備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。A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage
本文合成了高效酰化催化劑4 -二甲基氨基吡啶（ 4 - dimethylaminopyridine ， dmap ） ，採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物，並進行了化學結構和液晶性能的表徵。Based on the liquid crystal polymer theory, two kinds of polyacrylates were synthesized by choosing biphenyl group as rigid nucleus of mesophase group and six methylene chain as flexible spacing group. an important chiral additive was synthesized by choosing l ( - ) ~ 2 - octanol as chiral group. mixture was made of the additive and liquid crystalline polymer, which structure was identified by ftit, " ii nmr, dsc and pom
本論文根據液晶分子結構理論，選擇聯苯基作為介晶基元的剛性核、柔性的六亞甲基脂肪鏈為柔性間隔基，與丙烯酸反應，合成了兩種丙烯酸酯型聚合物；以拆分的l （ - ） 2 -辛醇為手性基團合成了一種液晶手性添加劑，並將所合成的手性添加劑與液晶聚合物共混，採用ftit 、 ~ 1h - nmr 、 dsc 、 pom等手段對合成的化合物、共混物進行了表徵。An acrylic alkyd was produced via monoglyceride, in which acrylic prepolymer containing carboxyl with small molecular weight was applied as a modifier
摘要採用單甘油酯法成功地制備出表干快、硬度高、耐候性好的丙烯酸改性醇酸樹脂自干型塗料，可滿足戶外大型鋼結構的塗裝要求。And their improved catalytic activity can be effectively used at lower temperatures and higher production rates. as a result, significantly higher productivity and longer catalyst lifetime have been successfully demonstrated in many installations. we adopt comprehensive stratagem and competitive technology to develop our company
D006mtbe催化樹脂適用於上述煉油型和化工型的各類反應器，在床層反應溫度30 - 60異丁烯含量15 - 50醇烯比0 . 95 - 1 . 05和空速2 - 5 h的工藝條件下，均有著優良的催化性能和較長的使用壽命。分享友人