苯酰化

The X-ray diffraction shows that the resin is crystalline. The heat analysis shows that the resin is well heat-resistant and has very good thermal stability and T=101℃. The T is better 10℃ than polyphenylene sulfide. The PASI resin will be applied abraod.

表征结果表明，聚合物为设计聚芳硫醚酰亚胺结构；X射线衍射表明聚合物为结晶性聚合物；热性能测试表明，聚合物的玻璃化温度为101.91℃，高于聚苯硫醚(87.00℃)，聚合物具有良好的热性能。

Based on 26B4APBN monomer, polyamic acid was obtained by polymerization with pyromellitic dianhydride, and further imidized into polyimide film by heating process.

由二胺单体和均苯四甲酸二酐进行聚合得到26B4APBN/PMDA聚酰胺酸，再经热亚胺化得到聚酰亚胺薄膜；测试了该薄膜的接触角，讨论了单体分子结构对聚合物接触角的影响。

The negatively charged sulfonic acid groups was readily introduced through the reaction of the terminal anhydride groups of the anhydride-terminated hyperbranched poly precursor with the amino groups of sulfanilic acid before chemical imidization.

研究表明，在聚合过程的聚酰胺酸阶段，采用过量的邻苯二甲酸酐或苯胺对超支化聚酰亚胺的端氨基或端酸酐基团进行的封端改性切实可行，改性反应可进行地相当彻底。

It is shown that the optimal conditions for the reaction of CADB with SESA are pH 12.0 and m:m=6:1.The product p-aminobenzart sulfanily ethyl CADBwas diazotized and linked with lipase.The optimal pH for lipase linked to diao-compound is 7.5.The link time is at last 12h.

试验结果表明：CADB与SESA反应的最适条件是pH＝12.0，SESA与CADB质量比为6：1，反应生成的对氨基苯磺酰乙基交联烯丙基葡聚糖凝胶经重氮化后与脂肪酶偶联的最适条件是pH7.5，偶联时间≥12h。

Methods The derivation with dansyl chloride was followed by normal-phase chromatography with a mobile phase of acetone/chloroform (2:98) at a flow rate of 1 mL/min and with the detection wavelength set at 425nm.

唾液经纯化、丹酰氯衍生化后用苯提取，以Hypersil BDS CN为正相色谱柱，丙酮－氯仿(2：98)为流动相，流速1 mL/min进行测定，检测波长为425 nm。

In this thesis, a novel polymerizable cation amphiphilic compound, 4-2-(acryloyloxy ethoxy benzyl tri-ethyl ammonium bromide, was synthesized.

本论文合成了一种新型可聚合两亲化合物4-2-(丙烯酰氧基乙氧基苯亚甲基三乙基溴化铵。

A novel polymerizable amphiphilic compound with self-assembly ability, 4-2-(acryloyloxy ethoxy benzyl tri-ethyl ammonium bromide, was designed and synthesized. It exhibits good water solubility, strong self-association ability and response to extra-stimulation.

设计并合成了一种新型具有自组装功能的可聚合两亲化合物4-2-(丙烯酰氧基乙氧基苯亚甲基三乙基溴化铵，它易溶于水，具有很强的自缔合能力和对外界刺激的响应性。

A novel type of photoalignment material based on the esterification reaction of 3,5-dihydroxyl benzyl alcohol and cinnamoyl chloride was firstly reported in this paper. The distinct property of this material is the nonlinear branch conformation and its polarity end with hydroxyl group.

通过在3，5-二羟基苯甲醇分子中的双酚基基团上引入双肉桂酰酯光敏基团的酯化反应，合成了一类新型的分子顶部为羟基极性基团，整个分子构型类似于树枝状的光敏小分子化合物。

Thermal imidization of the polyamic acid derived from BPADA and BAPS was investigated mainly by GPC and FTIR equipped with an in-situ hot cell.

利用GPC、原位FTIR测定了长链聚酰胺酸PAA由双酚A二酐与 4 ，4′-二(4-胺基苯氧基二苯酚制备的热环化过程。

Then we completed the first total synthesis of-Plakoridine A using Eschenmoser couping reaction as akey step. During the synthesis we found the choice of protecting groups and the configuration of the chiralcenter of the substrate play an important role to the key Eschenmoser reaction,so we think our successwould be of guide for synthesizing other polysubstituted pyrrolidines or piperidines.

在论文的第一章中，我们先以易得的对羟基苯乙酸乙酯为原料经多步反应制得了所需的β氨基酸酯，然后利用立体选择性的Aldol缩合反应和内酰胺化反应制得了Plakoridine Alactam，随后，以Eshenmoser缩合反应为关键步骤完成了生物碱-Plakoridine A的首次不对称全合成。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。