二聚性
- 与 二聚性 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Urethane adduct was synthesized from decarboxylated cashew nut shell liquid,hexamethylenediisocynate and polyethylglycol,which was then reacted with melamineformaldehyde resin to form aqueous coating material.
采用天然植物油、己二异氰酸酯和聚乙二醇在较温和的条件下反应,制得了水溶性的氨基甲酸酯加成物,以此和低醚化度甲醚化三聚氰氨甲醚甲醛树脂制备了水性涂料。
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RESULTS:①Cytocompatibility of PEG-PLA-PGL membranes with HUVECs: The observation result of phase contrast microscopy showed that, endothelial cells planted on the PEG-PLA-PGL membranes began to attach and stretch after being planted 4-6 hours. Three days later, cells grew in colonies rapidly, after 5 days, colonies began to fuse and seemed like cobble-stone. The cells were shuttle or polygon in shape after passages.
结果:①人脐静脉内皮细胞与聚乙二醇-聚乳酸-聚谷氨酸三嵌段共聚物膜片的细胞相容性:相差显微镜下种植在聚乙二醇-聚乳酸-聚谷氨酸三嵌段共聚物膜片上的细胞4~6 h后即开始贴壁、伸展,3 d后细胞开始呈集落样生长,生长较快,5 d后细胞集落开始融合,呈现特征性的鹅卵石样形态,经多次传代后,细胞呈长梭形或多角形,与对照组相比无明显差异。
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This design is low stretch of 30,000 tons of high-strength type polyester production workshop after preliminary design, high low stretch of polyester staple fiber dosage is in the biggest species, it is PTA or dimethyl terephthalic acid and glycol as raw materials via esterification or the ester exchange reaction and condensation of terephthalic acid polymer fibre - together into glycol, this design USES Germany JiMa process, high scientific and technological content, is a kind of high strength, good elasticity, and heat resistance, good abrasion resistance, corrosion resistant polyester.
帮忙把涤纶论文绪论翻译成英语,要求不用翻译软件,可以用软件查单词本设计是"年产30000吨高强低伸型涤纶短纤维后加工生产车间初步工艺设计",高强低伸型涤纶短纤维是涤纶短纤维中用量最大的品种,它是以精对苯二甲酸或对苯二甲酸二甲酯和乙二醇为原料经酯化或酯交换和缩聚反应而制得的成纤高聚物——聚对苯二甲酸乙二醇酯,本设计采用德国吉玛工艺,科技含量较高,是一种强度高、弹性好、耐热性好、耐磨性好、耐腐蚀的涤纶短纤维。
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A novel type of amphiphilic tri-block copolymers with both pH and temperature sensitiveness: poly-poly (dimethylamino ethyl methacrylate)-poly (ε-caprolactone)(PEG-PDMAEMA-PCL) was synthesized via sequential oxyanionic polymerization of macro-molecular: PEG, with a hydroxyl at one end, and dimethylamino ethyl methacrylate andε-caprolactone, with the potassium naphthalene as the initiator.
在本文中,报道了一类新型的兼具pH和温度敏感的双亲性嵌段共聚物:聚乙二醇-聚甲基丙烯酸N,N-二甲氨基乙酯-聚己内酯(PEG-PDMAEMA-PCL)及聚甲基丙烯酸N,N-二甲氨基乙酯-聚己内酯(PDMAEMA-PCL)的制备;并利用动态光散射和氢核磁共振光谱(~1H NMR)对该嵌段共聚物的水溶液性质进行研究;在此研究结果的基础上,初步探讨了其在仿生物矿化中的应用。
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In this article, we have been investigated that synthesizing and properties of shape memory polyurethane. The shape memory polyurethane was synthesized from PCL diol, MDI(4, 4'-diphenylmethane diisocyanate) and BDO (1,4-butanediol) in this experiment. We analyzed that the effect of differential mole ratio of monomers to synthesized SMPU. Besides, the various concentrations of Nano-silver were mixed with SMPU. Mechanical properties and shape memory behavior of SMPU nanocomposite films were investigated.
本研究目的为藉由改变4,4'-二苯甲基二异氰酸盐(4,4'-diphenylmethane diisocyanate, MDI)/聚己内酯二元醇(polycaprolactone diol, PCL diol)/1,4-丁二醇(1,4-butanediol, BDO)等不同莫耳比制备形状记忆型聚氨基甲酸酯(Shape Memory Polyurethane, SMPU);并探讨改变不同单体莫耳比及添加不同浓度奈米银溶液对其物性及形状记忆性的影响。
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The initial three chapters of this dissertation aim to improve the regularity of ladderlike polysiloxane through strong H-bonding template and slowly dropping half water for hydrolysis and condensation.
本论文前三章旨在利用强氢键模板作用和半水量水解同步缩合脱氯化氢的改进方法首次合成了(1)高规整性、可溶的反应性含对苯二胺有机桥基的聚氢基硅氧烷高分子,29Si-NMR 图中显示梯形主链上硅原子-Si(HO2/2峰的基线宽度△1.0 ppm,这是至今文献报道的所有梯形聚硅氧烷规整性最好的数据;采用分段去撑法成功的合成了纯无机梯形聚氢基硅氧(来源:1bABC论文网www.abclunwen.com)烷。
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A novel bis (o-aminobenzophenone) s monomer is synthesized, and is used to get three different polyquinolines containing phenylamine moiety through Frieldlander reaction. The solubilities, thermal stabilities and luminescent properties of the polymers were evaluated. All the polymers are thermal-stable, and are soluble in common organic solvents. The emission of their thin film is from excimer emission.
合成了一种新型的二邻氨基二苯酮单体,通过Frieldlander反应,可以构造出不同结构的含有类三芳胺基元的发光聚喹啉,对其溶解性、热性能进行了研究,结果表明这类聚喹啉在常用有机溶剂中的溶解性有了很大提高,同时保持了聚喹啉较高的热稳定性;研究了它们在溶液态和薄膜态的紫外可见吸收光谱和荧光发射光谱,发现它们在薄膜态下的荧光发射主要来自于分子间激基复合物发射。
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The results showed that there was a more better effect of filmformation and absorbency to use poly 1788 as an adhesive and polyvinyl pyrrolidone(K:90) as a hydrophilic polymer. The silicon dioxide with particle size 0.3-1 μm as a inorganic pigment had a better absorbency. The polyethylene glycol modified with ethylenediamine had a more better characteristic of dye immobilization, absorbency and definition than the polyethylene glycol modified with diethylenetriamine, of which the polyethylene glycol of molecular weight of 400 modifiedwith ethylenediamine had more best performance.
研究结果表明:采用聚乙烯醇1788作黏合剂、聚乙烯吡咯烷酮(K值为90)作亲水性高分子可得到比较理想的成膜效果和吸墨效果;粒径分布范围在0.3-1 μm的二氧化硅作为无机颜料具有较好的吸墨性能;用乙二胺改性的聚乙二醇比用二乙三胺改性的聚乙二醇具有更好的固墨性、吸墨效果以及清晰度,其中乙二胺改性的分子量为400的聚乙二醇所得到的烷基多胺的效果为最好。
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A series of modified polyurethane elastomer materials with different amino siloxane content were synthesized,which were based on polyoxypropylene glycol,aminoethyl aminopropyl poly,toluene diisocyanate and the curing agent dimethylsulfide toluylenediamine.
以聚氧化丙烯二醇或聚氧化丙烯三醇、氨乙基氨丙基聚二甲基硅氧烷、甲苯二异氰酸酯为原料在无溶剂条件下制备预聚体,利用二甲基硫甲苯二胺为固化剂合成一系列氨基硅油改性聚氨酯弹性体材料,并对材料的力学性能、耐热性、表面水接触角等性能进行了测试。
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This embodiment will illustrate that the present invention of the (poly trimethylene terephthalate) PTT laminated film performs better than its PET counterpart in terms of vapor impermeability, flexibility and warpage; its vapor impermeability is about equal to a TPT back sheet, while flexibility and warpage are better than TPT back sheet.
本实施例说明本发明聚对苯二甲酸丙二醇酯薄膜复合成的叠层膜的抗水汽渗透性、挠性和翘曲度优于多层聚对苯二甲酸乙二醇酯薄膜复合形成的叠层膜,抗水汽渗透性与TPT背板基本相当,挠性和翘曲度优于TPT背板。
- 推荐网络例句
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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&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。