醇基
- 与 醇基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The specific properties of materials, such as the palate adhesion, dynamic cruor, anti-bacterial and the degradability of lysozyme, were studied, which provide valuable data for further application. The main creative ideas are listed as follows:(1) The water-retention chitosan/poly vinyl alcohol blend fiber was obtained by coagulating in 10% NaOH/ethanol solution, and the blend and crosslink due to GA can enhance the mechanical properties of fiber;(2) The controlled degradable chitosan/gelatin blend fiber was obtained by solution filature, and the mechanical properties were improved;(3) The N-acylchitosan with the different degree of substitution were successfully prepared, and the relationship between structure and properties was estabilished;(4) By a new solvent system of 6% NaOH/4% urea for cellulose, the blood anti-coagulant function films were prepared by blending cellulose with chitin;(5) In the same solvent system above mentioned, the anti-bacterial blend films based on cellulose and carboxymethyl-chitosan were prepared, and the relationship of DS and the anti-bacterial property was concluded;(6) The controlled degradable chitosan films was obtained by the chemical crosslink.
本论文的主要创新点:(1)以NaOH水溶液/无水乙醇为凝固液,采用溶液纺丝法制备出保水性壳聚糖/聚乙烯醇纤维,共混和戊二醛交联极大提高了壳聚糖纤维力学性能;(2)用壳聚糖和明胶共混,以溶液纺丝法制备出可控降解的壳聚糖/明胶纤维,并大幅度提高了壳聚糖共混纤维的干、湿态抗张强度;(3)确立了不同取代度N-酰基壳聚糖的合成方法及其膜的结构与性能的关系;(4)利用纤维素新溶剂6%NaOH/4%尿素制备出抗凝血性纤维素/甲壳素共混膜;(5)利用上述纤维素新溶剂制备出抗菌性纤维素/羧甲基壳聚糖共混膜,揭示了羧甲基壳聚糖取代度与抗菌性能的关系;(6)制备出可控降解壳聚糖交联膜。
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G. the perfumes. The wall forming materials were TDI (2, 4-toluene diisocyanate) or 80/20TDI, triphenyl methane triisocyanate and biphenyl methane-4, 4-diisocyanate , Poly vinyl alcohol was used as protective colloid and GPE2040 was used as the emulsifier.
壁材单体分别使用了2,4-甲苯二异氰酸酯、80/20-甲苯二异氰酸酯、三苯基甲烷-4,4′,4-三异氰酸酯和二苯甲烷-4,4′-二异氰酸酯;保护胶体是聚乙烯醇;乳化剂是聚醚2040;催化剂使用二月桂酸二丁基锡。
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A study was made on the application of dimethyl silicone oil ,propanetriol and 1,2 propanediol to decrease the modulus of MVQ vulcanizate.
探讨了用增塑剂二甲基硅油、丙三醇和1,2-丙二醇降低甲基乙烯基硅橡胶硫化胶模量的途径。
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Based on the technology introduced from Japan and Europe, the company adopts the domestic and overseas advanced equipment and raw materials to develop high quality non-flavescenct household appliances ornament paints, ecological polyester woodware paints and non-toxicity and pollution-free building interior- and extencr.wall latex paints, meanwhile, it produces several hundreds of varieties in eight categories including high grade polyurethane varnish, color paints and nitro-, amino- and alkyd paints series products, amino-hammer paint and synthetic resin, low-free TDI polyester curing agent.
以日本,欧洲引进的先进技术为依托,采用国内外的先进设备和原材料,开发出适合中国特点、达到国际品质的高档无黄变家居装饰漆、生态聚酯木器漆及无毒无污染的建筑内外墙乳胶漆。公司同时生产高级聚氨酯清漆、彩色漆、硝基、氨基、醇酸系列漆、氨基锤纹漆及合成树脂、低游离TDI聚酯固化剂等八大类几百个品种
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A series of methyl 2,7,7-trimethyl-5-oxo-4-aryl1,4,5,6,7,8- hexahydroquinoline -3-carboxylate were synthesized by the reaction of aromatic aldehydes,dimedone and methyl acetoacetate using ammonium acetate as catalyst in glycol under microwave irradiation with 82%~98% yields in 4~6 min.
微波辐射下以芳醛、达咪酮、乙酰乙酸甲酯为原料,乙二醇为溶剂,醋酸铵为催化剂合成了一系列2,7,7-三甲基-5-氧代-4-芳基-1,4,5,6,7,8-六氢喹啉-3-羧酸甲酯化合物,反应时间4~6 min,产率82%~98%。
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A set of laser monitoring observation system to be used for measure the solubility with a high speed, which is programmed heating apparatus , have designed. The solubility of 1,2-cyclohexanediol were measured in water, methyl acetate, acetic ester, propyl acetate, butyl acetate, methyl acrylate, ethyl acrylate, acetoacetic ester at different temperature.
另外,还建立了一套带激光监视系统,可以控制升温速率的溶解度测定实验装置,测定了反式-1,2-环己二醇在水、乙酸甲酯、乙酸乙酯、乙酸丙酯、乙酸丁酯、乙酰乙酸乙酯、丙烯酸甲酯、丙烯酸乙酯和甲基丙基酮等9个二元体系中的溶解度。
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Various synthetic method of 1,3-propanediol were introduced and compared, including hydration and hydrogenation of acrylaldehyde, carbonylation of epoxy ethane , microbiological fementation, the process starting from methyl aldehyde, etc.
介绍了1,3-丙二醇的几种制备方法,即丙烯醛水合-氢化法、环氧乙烷羰基化法、微生物发酵法和以甲醛等为原料的方法。
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In some studies, hydrocortisonesubstitution based on an adrenocorticotropic hormone-stimulationtest or baseline cortisol measurement has improved outcome.
在一些研究中,基於促肾上腺皮质激素刺激试验或皮质醇基础测量值来开展的氢化考的松替代治疗已改善了结果。
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The transesterification reaction were studied under organic solvents systemThe dosage of diatomite immobilized lipase of Enterobacter aerogenes is 1000 U, ethanol as acyl receptors(alcohol:oil molar ratio is 4:1,2 times add),5 mL n-hexane, 180 r/min,35℃,48 h,and the conversion rate of 92.91%.
有机溶剂体下催化生产生物柴油硅藻土固定化产气肠杆菌脂肪酶用量为1000 U,乙醇为酰基受体(醇:油摩尔比为4:1,2次等量加入),5 mL正己烷,180 r/min,35℃,反应48 h,转化率达92.91%。
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This thesis mainly focused on the sidearm effects in catalytic Wittig-type olefination and catalytic asymmetric 1, 3-dipolar cycloaddition between nitrones and alkylidene malonates.
本文主要研究了催化的叶立德烯基化反应及催化的不对称1,3偶极加成反应中的边臂效应。在论文的第一部分,我们设计、合成了聚乙二醇负载的烷基碲化合物33(Bu-Te-PEG-Te-Bu)。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。