查询词典 polystyrene

Fourthly, The preparation of 1 -triazolyl-2-isoxazolinyl substituted-ethenes was developed through an one-pot 1, 3-dipolar cycloaddition of NaN_3 and RI,α-alkylation reaction of substituted allyl bromides and 1, 3-dipolar cycloaddition of nitrile oxidesbased on polystyrene-supported propargyl selenide.

四、从聚苯乙烯负载的炔丙基硒醚出发，通过与叠氮化钠和碘化物的一锅法1，3-偶极环加成反应、取代烯丙基溴的α-烷基化反应和腈氧化物的1，3-偶极环加成反应固相合成了1—三唑—2—异噁唑啉取代的-乙烯。

The resin is prepared by swelling chlorine balls in a solvent such as nitrobenzene; adding catalyst to obtain polystyrene-divinylbenzene adsorptive resin; removing reaction mother solution; washing to remove residual solvent and catalyst; swelling; adding pyrane reagent to further react with chloromethyl residual on inner and outer surfaces of the resin to obtain the pyranyl modified adsorptive resin with the composite function.

该树脂的制备方法：将氯球溶胀于硝基苯等溶剂中，加入催化剂，得到聚苯乙烯-二乙烯苯吸附树脂；抽尽反应母液，洗去残留的溶剂和催化剂；溶胀，加入吡喃试剂与树脂内外表面残留氯甲基进一步反应，可制得吡喃基修饰复合功能吸附树脂。

Preparation of polymeric nanocapsules by radiation induced miniemulsion polymerization (1) Polystyrene nanocapsules with liquid core were prepared by ~(60)Coγ-ray radiation induced miniemulsion polymerization, in which N-vinyl pyrrolidone was used as polar monomer.

本文首先通过辐射引发细乳液聚合制备了聚苯乙烯纳米微胶囊，并从热力学与动力学两方面研究了影响纳米微胶囊形貌的因素；之后使用反相乳液聚合制备了磁性复合微球和磁性复合空心微球，并研究了有关影响因素。

At wall-floor connections a sheet of expanded polystyrene is inserted which acts as thermal insulation at this point and also as permanent shuttering.

在相邻面墙和地板的接缝中放进一层聚苯乙烯泡沫，使接缝处能充分的隔热防寒。

The soapless polystyrene latex particles were prepared by using microwave irradiation in a closed reactor under controlled pressure, microwave irradiation and water bathing under normal pressure, respectively.

分别用控压微波辐照法、常压微波辐照法和常压水浴合成法制备出无皂聚苯乙烯胶乳粒子。

MKF polystyrene-divinylbenzeneC18(MKF-PS-C18) reversed phase stationary was prepared by treating corresponding microspheres of uniform diameter with stearyl chloride and characterized with infrared spectra,loading capacity and separation performance.

比较了MKF-PS-C18基质与硅胶基质在有机相和水梯度条件下的色谱柱压性能。

Poly（p-vinylbenzyl succinimide） resin,which can be abbreviated to succinimide resin,was prepared by the reaction of chloromethylated polystyrene with succinimide in the presence of base. The succinimide resin was characterized by diffuse reflectance infrared Fourier transform spectrometry and elemental analysis.

摘 要：在碱性条件下，氯甲基化聚苯乙烯与丁二酰亚胺反应合成了聚（对乙烯基苄基丁二酰亚胺）树脂，采用元素分析、红外光谱对合成树脂的组成进行了表征。

A novel combination of PVA and polystyrene sulfonic acid is also realized by blending method.

在乙醇—水混合物的渗透蒸发分离中，PVA表现出良好的阻醇性能，这意味着PVA本身可能具有与我们的要求相近的亲、憎水比例。

Rare earth complexes can coordinated to the surface of sulphonated polystyrene microspheres when the content of EuCl〓 was not saturated. Rare earth complexes may aggregate when the content of EuCl〓 exceed to saturation.

当EuCl〓的含量未达到配合的饱和程度时，稀土配合物均匀地配合在PS微球表面，而当稀土配合物的含量超过微球表面的配位能力之后，稀土配合物就会发生团聚。

Europium complex was successfully introduced to the surface of sulphonated polystyrene microspheres by coordination. Four composites with different EuCl〓 content were prepared and the products were characterized by transmission electron micrograph.

论文还通过配位作用将稀土配合物连接到PS微球表面，研究了4种不同EuCl〓含量的复合体系，并对其形貌进行了比较和分析。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。