The polymerization of styrene was mediated by copper(I) bromide/pentramethyl diethyl-triamine(PMDETA) using ethyl 2-bromopropionate(EBP) as initiator and a catalytic amount of Lewis acid(LA),such as aluminum hydroxide(AH),boric acid(BA),and(2-methylpropyl)boronic acid(MPBA),as a rate-accelerating additive.
以2-溴丙酸乙酯(EBP)為引發(fā)劑,溴化亞銅(CuBr)為催化劑,N,N,N′,N″,N″-五甲基二乙基三胺(PMDETA)為配體,選擇了3種路易斯酸(LA),即氫氧化鋁(AH)、硼酸(BA)、異丁基硼酸(MPBA)為加速劑,對(duì)苯乙烯(St)原子轉(zhuǎn)移自由基聚合的加速進(jìn)行了研究。
Compared to the traditional Lewis acid catalysts which comprised sulfur and zeolite catalytic chlorination system,it took on much superiority such as high-selectivity,high-yield,simple operation,savings and environmental protection etc.
相比于傳統(tǒng)的路易斯酸-含硫催化劑體系和沸石催化氯化體系,有選擇性高、產(chǎn)率高、操作簡(jiǎn)單、經(jīng)濟(jì)環(huán)保等優(yōu)點(diǎn)。
This paper gave an overall review of the application of lewis acid catalytic on various drug synthesis.
總結(jié)了路易斯酸在各種藥物合成反應(yīng)中的催化作用。
Eleanor Donnelly Erdman Hall represents the switch of Louis I.
埃德曼大廳是路易斯·康設(shè)計(jì)生涯的重要轉(zhuǎn)折點(diǎn),是第一個(gè)完整展現(xiàn)路易斯·康有關(guān)集會(huì)活動(dòng)空間理想的作品。
Reflection on Louis I.
通過分析孟加拉首都政府建筑群來(lái)詮釋路易斯·康的設(shè)計(jì)哲學(xué)理念及他將物質(zhì)要素的功能性與精神性完美結(jié)合的設(shè)計(jì)手法。
Architecture Philosophy: Yang Tingbao, Liang Sicheng, Le Corbusier and Louis Kahn——Modem History Part in the Generality of Sino-west Architecture Philosophy History;
楊廷寶、梁思成、柯比西耶及路易斯·康的建筑哲學(xué)——中西建筑哲學(xué)史概說(shuō)中現(xiàn)代史局部
Inherit Forerunner Exhibition Individual Style——The Influence of Louis Kahn on Mario Botta s Architecture;
秉承師訓(xùn) 特立獨(dú)行——路易斯·康對(duì)馬里奧·博塔建筑的影響
Enamines were reduced to corresponding amines by trichlorosilane(HSiCl3) using Lewis base dimethylformamide(DMF) as a catalyst.
用路易斯堿二甲基甲酰胺(DMF)催化三氯氫硅(HS iC l3)還原烯胺合成對(duì)應(yīng)的胺,最佳反應(yīng)條件為:烯胺0。
Demonstrators launched a mock invasion of Fort Lewis on July 15.
七月十五日，示威群眾向路易斯堡發(fā)動(dòng)一次模擬的入侵。
Radenbaugh is locked up in Lewisburg.
雷登堡現(xiàn)在還關(guān)押在劉易斯堡的監(jiān)獄中吧。
Charles Collins, 14 Castle Road, London N12,
查爾斯?柯林斯，倫敦N12，城堡路14號(hào)，
DOBLES SANCHEZ, Luis
路易斯·多布爾斯·桑切斯
By Robert Louis Stevenson
羅伯特?路易斯?斯蒂文森
Road from Stockholm to Johannesburg
從斯德哥爾摩到約翰內(nèi)斯堡的道路——人類環(huán)境保護(hù)史上的三個(gè)路標(biāo)
Isn't that true,Louis?
是不是這樣，路易斯？
But Louis still couldn't see.
但路易斯仍然看不見。
Louis died when he was only 42.
路易斯42歲時(shí)就去世了。
Louis will never read or write.
路易斯不能讀，不能寫。
A man came and read books to Louis.
一個(gè)人給路易斯讀，
Louis and his father went home.
路易斯和爸爸回到家。
It's easy to lose your way in Venice.
在威尼斯很容易迷路。
capital of Louisiana.
路易斯安那州的首府。
Louisiana State University
路易斯安那州立大學(xué)
It had been installed for Louis Howe.
這是為路易斯·豪修建的。
SANCHEZ, Homero Luis HERNANDEZ
奧梅羅·路易斯·埃爾南德斯·桑切斯
HERNANDEZ-SANCHEZ, Homero Luis
奧梅羅·路易斯·埃爾南德斯-桑切斯