胶

In the case of radical-initial polymerization, the chain-transferring reaction occurred in the blends of PMMA and PV Ac, and there was a dramatical increase in gel content when PV Ac concentration come to a critical value of 30 wt%.

研究结果表明在PMMA/PV Ac共混体系中，链转移反应导致了凝胶产物的形成，并且凝胶含量的增加与共混组成的变化存在一临界现象，即当PV Ac含量超过30wt%，体系中的PMMA-PV Ac凝胶含量急剧增加。

The research of swelling dynamic behavior shows that the electrolytical ions in swelling media have a great effect on the swelling behavior of PVA gel and the equilibrium swelling ratio in physiological saline is less than that in aqueous media.

溶胀特性研究显示，PVA水凝胶在生理盆水中的平衡溶胀比小于其在蒸馏水中的平衡溶胀比，凝胶的平衡溶胀比随浓度和冷冻－解冻次数的增加而下降，其下降趋势满足幂函数的变化规律；水凝胶的溶胀过程符合溶胀动力学方程。

The results showed that MGM had good spherical shape and narrow size distribution,and the particles with diameters ranging from 0.13 mm to 0.28 mm were about 91 wt%.The surface hydrophilicity of Fe3O4 microcrystal was improved by formamide dispersing treatment.The gel particles made by the copolymerization of glycidyl methacrylate and N,N′-methylene bisacrylamide could encapsule Fe3O4 microcrystal to produce colloid cores,and uniform and stable MGM microspheres were formed by the conglomeration of the colloid cores.

结果表明，合成的MGM呈球形，且粒度分布较窄，粒径为0.13～0.28 mm的粒子占91%；甲酰胺分散Fe3O4，微晶表面的亲水性进一步增强，单体甲基丙烯酸缩水甘油酯和 N，N′亚甲基双丙烯酰胺交联共聚生成的胶粒能够包埋Fe3O4微晶形成胶核，胶核聚集形成均匀、稳定的MGM微球。

Chitosan-Collagen-GAGs collagen gelart ificial skin is a new collagen gel living artificial skin which has certain antibacterial ability and stratified epiderm is and dense dermis structure like normal skin.

壳多糖-胶原-GAGs胶原凝胶人工皮肤是一种新型、有一定抗感染能力的活人工皮肤。

DSC analysis found that the behavior of PSPI-TM film containing TiO〓of 12% was greatly different from that of the corresponding ester-typePSPI film. An intense exothermal change was found on the DSC curve. TGAanalysis indicated that the curve for weight loss of the PSPI-TM film wouldnot reach a platform until 400℃.

DSC热分析表明含TM基于转化后PI的重量折算为12 ％(w／w的Ti〓的PSPI光刻胶膜的热转变行为不同于相应的酯型PSPI光刻胶膜，在300℃附近有一个很强的放热过程；TGA分析表明这种含TM的光刻胶膜直到400℃以上才达到&失重平台&。

The characteristics of the AP include (1) in addition to the formation of hydrogel in aqueous alkaline or polar organic solution, AP can form carbonaceous hydrogel in neutral and acidic aqueous solutions, which extents the application of carbonaceous sol-gel;(2) AP contains a large amount of nitric groups which decomposes quickly by thermal initiation, releasing a large amount of gases and heat, indicating explosive properties of the AP;(3) metal salt-containing AP is also explosible by thermal initiation, and the metal in AP promotes the explosion.

以沥青为碳源，用氧化法制备水性沥青过程中，浓硫酸和浓硝酸的比例、用量、氧化温度及氧化时间对水性沥青的收率皆有影响。经过氧化后，沥青上含有许多含氧官能团，导致水性沥青溶于水。含氧官能团越多，水性沥青越易溶于水。调节制备条件，可使水性沥青不仅可以在碱性水溶液中形成凝胶，而且可以在中性和酸性水溶液中形成溶胶、凝胶，从而拓宽了炭基溶胶—凝胶法制备炭基纳米材料的应用范围。

Uniformity of the photoresist film, adhesiveness between underlay and glue film, exposal and develop condition of high thickness difference are all solved in the thesis.

在厚胶光刻工艺中重点解决了胶膜厚度的均匀性、胶膜与衬底的粘附性、大厚度差胶层的曝光、显影条件等的优化问题。

Week. Conclusions The S1 area brain glioma model established by this method in rats had the same characters as human brain glioma. The tumor growth period was short and the subsisting period was stable without extracerebral metastasis and extracranial extension. This model is suitable for laboratory and treatment study of brain gliomas.

该方法建立的S1区脑胶质瘤模型具备与人脑胶质瘤生长相似的特性，肿瘤形成时间短，生存期稳定，且无脑外转移和颅外扩散，适合各种脑胶质瘤实验治疗研究。

Methods HE and immunohistochemistry were used to observe the changes of glial fibrillary acidic protein and CD34 in the surrounding areas after cerebral infarction in human.

方法采用HE染色观察星形胶质细胞和微血管的变化，免疫组化技术检测胶质纤维酸性蛋白和CD34在星形胶质细胞和微血管的表达。

The results indicate the membrane prepared in pure water coagulation bath exhibits fingerlike structure, with an increase of the volume fraction of ethanol in coagulation bath leads to a reduction of fingerlike cavities, and in ethanol/water coagulation bath of φ=40% exhibits spongelike structure; the melting points of the fingerlike and spongelike membrane increase by 3.9℃ and 3.5℃ compared to that of raw material respectively, and the crystallinity of the two type membranes increases by 16.1% and 13.5% respectively.

结果表明纯水凝胶浴中所成膜为指状多孔膜，随着凝胶浴乙醇体积分数的增加，膜指状大孔逐渐消失，在φ=40%的乙醇／水凝胶浴中转变为海绵状多孔膜；指状多孔膜和海绵状多孔膜熔点相对于原料分别提高了3.9℃和3.5℃，而结晶度相对于原料分别提高了16.1%和13.5%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。