醚的

Tg=265℃ and poly with cardo groups (PEK-c, Tg=225℃) are new types of thermoplastic resins used as engineering plastics for their high temperature mechanical properties, electrical insulation, radiant resistance and thermal-oxidative stability.

酚酞型醚砜（PES-c，Tg=265℃）和酚酞型聚醚酮（PEK-c，Tg=225℃）均为新型热塑性树脂，具有很高的耐热性，优良的高温机械性能，电绝缘性，热氧稳定性和耐辐射性，作为工程塑料将具有广泛的用途。

A new kind of copolyetherimide is synthesized, and effect of contents of this kind of COPEI resin on morphology of blends of COPEI/the diglycidyl ether of bisphenol A(the Epikote 828)/ 4,4'-diamino diphenyl sulphone and preparation of epoxy resin microspheres are researched .

采用共缩聚方法合成了一种新型聚醚酰亚胺，通过改变它在COPEI/双酚A二缩水甘油醚型环氧树脂(E828)／二氨基二苯基砜共混体系中的用量，考察了对共混体系的相结构以及对制备环氧树脂微球的影响。

Objective: To study the effects of pentabrominated diphenyl ethers on the structure and function of reproductive system in rats and mechanism.

目的：研究五溴联苯醚对大鼠生殖系统结构和功能的影响及其机制方法：在五溴联苯醚对雄性大鼠生殖系统作用的时效关系研究中，选取健康23日龄雄性SD大鼠40只，体重40～60g，随机分为8组，每组5只，分别为染毒5、15、30、45d的实验组和溶剂对照组。

Some factors affecting the etherification, such as temperature, time and catalysts etc, were studied, and the relatively optimal reaction conditions were worked out molar ratio of reaction material/catalyst 1/1, T=100, t=1 h.

研究了影响醚化反应的一些因素，如温度、时间、催化剂等，并在此研究基础上得出了较佳的醚反应条件为：物料／催化剂的摩尔比为1/1，温度为100℃，时间为1 h。

In pilot test of 150 t/a of synthesizing ethylene glycol tbutyl ether from isobutene and ethylene glycol, reaction temperature, catalyst life, reaction heat draw and affection of LHSV on etherization are investigated.

通过异丁烯与乙二醇合成乙二醇特丁醚 1 50 t/a中间试验，考察了反应温度、液体空速对醚化反应的影响及反应器的撤热情况，考察了催化剂的寿命，提出精制各塔操作参数和产品质量指

Two magnetic triphase catalysts of comb-like polyether s supported by γ-Fe2O3 were synthesized, and their catalytic behaviors in the iodo-substitution, etherization and the addition reaction of dichlo-rocarbene to styrene were also investigated.

以表面经偶联剂修饰的γ-Fe2O3为载体，通过聚分别与乙二醇单甲醚和一缩二乙二醇单甲醚的醇钠盐反应，合成了两种磁性梳状聚醚三相相转移催化剂，研究了它们在碘代、二氯卡宾对双键加成和混合醚制备反应中的催化活性。

Crown ether was introduced to copolymerize with the monomer of styrene owing to which can associate with silver ions. The silver ions were in-situ reduced to silver nanoparticles by UV light. Then silver nanoparticles were led on the surface of polystyrene latex particles. The vertical precipitation was employed to get the spheres self-assembled into close packed colloidal crystal with a face centered cubic structure identified.

利用冠醚可与银离子复合的特性，制备了聚苯乙烯－冠醚乳胶粒，采用原位还原的方法在乳胶粒表面引入银纳米颗粒，通过垂直沉降，乳胶粒子可自组装成紧密堆积具有面心立方的聚苯乙烯－银胶体晶体。

Exposure of the modified fabrics to 350 nm light yielded neutral SPEEK radials.

改进后的织物暴露在350 nm的光线之下，产生出了中性磺化聚醚醚酮。

A sneak peek of the game is on the floor of the MacWorld Conference this ...

抢先聚醚醚酮的比赛是在地板上的MacWorld大会上这

An improved chemical method for the determination of the molar substitution degree of hydroxyethyl guar gum has been described.

本文用模型小分子一缩二乙二醇的醚键断裂实验证明了可行性，羟乙基瓜尔胶上的羟乙基链段与过量对甲苯磺酸-乙酸酐在130℃下反应14hr，醚键完全断裂生成酯，并在pH=11条件下煮沸1hr使酯完全水解，转变为乙二醇。

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。