乙烯的

A random copolymer of poly(vinyl acetate-co-isopropenyl acetate) with number-average molecular weight of 9600 and relatively narrow molecular weight distribution （MWD, M w/ M n=2.03）was prepared by free radical copolymerization of vinyl acetate with isopropenyl acetate using AIBN as initiator.

通过自由基共聚合方法，以AIBN为引发剂引发醋酸乙烯酯和醋酸异丙烯酯共聚，得到两者的无规共聚物聚。

Three series of donor-acceptorπ-conjugated molecules 1, 2, and 3 have been designed and synthesized with a N, N-dimethylamino, Julolidine group (2,3,6,7-tetrahydro-1H, 5H-pyrido[3, 2, 1-ij]quinolinyl), or N, N-diphenylamino group as the donor moiety, a phenylvinyl or thienylvinyl unit as the bridge, and a bromide or aldehyde group as the acceptor moiety.

本文设计并合成了1、2、3三个系列的D-π-A型化合物(Donor-Acceptorπ-conjugated compounds)，在化合物分子中引入久洛尼啶基团(2，3，6，7-tetrahydro-1H，5H-pyrido-[3，2，1-ij]quinolinyl)，N，N-二甲基氨基，或N，N-二苯基氨基为供电子基团，以苯乙烯基或噻吩乙烯基为桥链，以溴原子或醛基为吸电子基团。

Synthesized ethylene - laborious Xi copolymer and methylic acrylic acid armour ester - propylene nitrile - the graft copolymer of styrene .

梗概： 合成了乙烯-辛烯共聚物和甲基丙烯酸甲酯-丙烯腈-苯乙烯的接枝共聚物。

The result shows the involvememt of monomeric G-proteins in the ethylene signal transduction.

这个结果表明，小G蛋白可能参与了NTHK1所介导的乙烯信号传导途径。

The ZSM-5/mordenite/zeolite Y intergrowth molecular sieve can be used for preparing ethylene and propylene by catalytic-cracking naphtha in the industrial production.

该ZSM-5/丝光沸石/Y沸石共生分子筛可用于石脑油催化裂解制乙烯丙烯的工业生产中。

Long-chain branched polyethylene was obtained using a homogeneous bianary catalyst system composed of late and early transition metal complexes,namely a mixture of bis(α-naphthalidine)-2,3-butanediimine NiBr2 and Cp* TiCl3,as catalyst precursors in the presence of MAO.

合成了一种后过渡金属镍化合物 [二- N ，N′--2 ，3-丁二亚胺镍二溴化物 ][C10H7—NC(CH3)C(CH3)N—C10H7]NiBr2，此化合物在MAO活化下催化乙烯聚合能得到含有末端双键的低分子量聚乙烯，即长链α-烯烃。

A dynamic generating toxic gas system and a nose-only exposure system were used for the pharmacokinetic study of inhaled environmental contaminants for benzene, toluene, xylene, ethylbenzene,chlorobenzene, styrene, isopropyl benzene, tetrachloroethylene, nonane and methylcyclohexane in male guinea pig.

用动态配气设备和鼻式吸入方式染毒，采用雄性豚鼠对环境中10种挥发性污染物(苯、甲苯、对二甲苯、乙基苯、氯代苯、苯乙烯、异丙苯、四氯乙烯、甲基环己烷和壬烷混合物)的吸入动力学进行了研究。

Nonion surfactants 1dodecanol polyethylene oxider 23 (Brij-35), polyethylene glycol-6000 (PEG-6000) made nickel deposit became dentrite.

非离子表面活性剂月桂醇聚氧乙烯23醚Brij 35）、聚乙二醇-6000(PEG-6000使镀层由无添加剂时的粒晶变成了枝晶。

Olid state cathodoluminescence of poly 2-methoxy-5-(2-ethyl-hexyloxy-1,4-phenylene vinylene in devices with Si3N4 as the electronic accelerating layer

i3N4做电子加速层的聚［2-甲氧基-5-(2-乙基-己氧基)-1，4-苯撑乙烯撑］固态阴极射线发光

Therefore it can he inferred that diethylenetriamine oxycellulose synthesized have the function of adsorbability for uric acid and As.

由此可知所研制二乙烯基三胺基氧化纤维素具有分别吸附尿酸和三价砷的功能。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新