苯乙烯基 的英文怎麼說

中文拼音 [běn]
苯乙烯基 英文
styryl; cinnamenyl
  • : 名詞[化學] (有機化合物的一類) alkene; olefince
  • 苯乙烯 : [有機化學] styrene; phenylethene; phenethylene; cinnamol; synachrom bio beads s; polypak; styrol;...
  1. The results suggested that the ph value, the type of monomers, the type, concentration and surface properties of inorganic nanoparticles, the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability. if selecting cationic emulsifier ( ctab ), low water soluble monomers ( such as ba, st ) and hydrophobic nano - silica, the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition

    系統研究了ba 、甲酸甲酯( mmal舊t )以及它們的共聚體系在超聲輻照作用下包裹聚合的主要影響因素,結果表明: ph值、單體的種類、無機納米粒子的種類、濃度及表面性能、乳化劑的種類及濃度等對超聲輻照包裹乳液聚合以及復合體系的穩定性有較大的影響。
  2. Studies on the so24 - zro2 solid superacid catalysts - alkylation of o - xylene with styrene

    鄰二甲的烷化反應
  3. Structure : a compound of diphenylenthylene group biphenyl type

    結構類型:二苯乙烯基類增白劑。
  4. Chiral quaternary ammonium salts were synthesized from cinchonine in cinchona alkaloids using chloromethylated polystyrene - polyethylene glycol, diethylene glycol, triethylene glycol and glycol as polymer - supported phase transfer catalysts, finsl products were characterized by ftir, elemental analysis, scanning electron microscopy, x - ray photoelectron spectroscopy ( xps )

    摘要以金雞納生物堿中的辛可寧為原料,氯甲化聚二醇、一縮二二醇、二縮三二醇、二醇等為載體合成了幾種聚合物負載的手性季銨鹽,並對它們的結構用紅外光譜、元素分析、掃描電鏡和x射線光電子能譜等測試手段進行了表徵。
  5. We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center

    我們分別以、二、噻吩為中心,氨、二和二為電子給體,硝為電子受體組合形成的分子為研究對象,在從頭計算的水平上用密度泛函理論計算了這些分子在低激發態下的單、雙光子吸收強度,重點研究了分子的長度、中心和給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明,分子長度與單光子吸收強度之間有密切關系,而在雙光子吸收中這種關系較弱;中心在雙光子吸收中具有重要的作用;在中心和受體一定的情況下,增加給體的供電子能力,可提高雙光子吸收強度。
  6. Three water - soluble acrylic resins are prepa red by polymerizing esters acrylate, acrylic acid , methylacrylic acid , esters methylacrylate with phenyl - ethene or ethylene acetate in present of water or alcohol and initiating agent. properties of the acrylic resins are characterized. results show that the resins possess excellent character, i. e. adhibity, water - solubility, expansion after dry for water , anti acidity or bascity and brightness in the products of same type

    以丙酸、丙酸酯、甲酸、甲酸酯等作為料,在引發劑的存在下,以水或醇作溶劑進行聚合,加入、醋酸等改性,合成了3種不同的水溶性丙酸改性樹脂,並對其性能進行了測定.結果表明:這3種樹脂的粘度、水溶解性、乾燥后膜的吸脹性、抗酸堿性、光亮度等性能均優于同類產品
  7. The thermodynamic free energy on mixing and the spinodal equation in ternary homopolymer blends were obtained by making plausible approximation based on flory ' s equation of state theory. because of the non - linear behavior of the spinodal equation, a numerical solution approach was used and succeeded in solving the problem. spinodal of polystyrene ( ps ) / poly ( vinyl methyl ether ) ( pvme ) / poly ( 2, 6 - dimethyl - 1, 4 - phenylene oxide ) ( ppe ) were simulated over a wide temperature range and the calculated result was coincidence with that of the literature

    將上述方法用於已知狀態方程參數的二元均聚共混體系聚( ps ) /聚甲醚( pvme ) ,三元均聚共混體系聚( ps ) /聚甲醚( pvme ) /聚2 , 6 -二甲1 , 4 -撐氧( ppe ) ,得到一系列不同溫度下的spinodal相圖,預測結果與文獻報道吻合,在此礎上進一步研究了聚合物的分子量對體系相行為的影響。
  8. Characterization of poly p - methylstyrene - b - isobutylene - b - p - methylstyrene

    對甲和異丁三嵌段共聚物的分析與表徵
  9. Mbs methyl methacrylate - butadiem - styrene copolymer

    酸甲酯一丁二共聚物
  10. Characterization of styrene - methyl methacrylate copolymer

    酸甲酯共聚物的表徵
  11. Thermoset acrylic coating are based on resins prepared from acrylic and methacrylic esters, acrylic and methacrylic acids, and / or styrene

    熱固型丙酸塗料是由丙酸和甲酸酯,丙酸和甲酸,或反應而成。
  12. Resonance raman study of short - time photodissociation dynamics of the charge - transfer band absorption of nitrobenzene in cyclohexane solution. xin - ming zhu, shu - qiang zhang, xuming zheng, david lee phillips. j. phys. chem. a 2005, 109, 3086 - 3093

    在環己烷溶液中短時光解動力學研究,張樹強,鄭旭明.第九屆化學動力學會議論文, 2005年9月
  13. The spectrum evolution of the femtosecond laser pulse in a three - level organic molecular medium ( 4, 4 ' - bis ( dimethylamino ) stilbene ) is studied theoretically by solving the maxwell - bloch equations using an iterative predictor - corrector finite - difference time - domain method

    摘要通過採用預估校正的時域有限差分法求解麥克斯韋布洛赫方程,我們研究了飛秒激光脈沖在三能級有機分子( 4 , 4 ' -二甲氨分子)介質中傳播時脈沖的頻譜演化情況。
  14. The molecules we studied are a series of trans - stilbene derivatives. first, we applied dft method optimized the new synthesis molecule 4, 4 ' - bis ( dimethylamino ) stilbene ' s structure, and used few states model calculated its tpa cross section. the results agree well with the experiment data

    首先,我們在密度泛函理論( densityfunctiontheory )的水平上對最近合成的分子材料4 , 4 -二甲氨的結構進行了優化,然後採用少態模型方法計算了分子的雙光子吸收截面,得到了與實驗符合很好的結果。
  15. These butylradicals bring about a rapid polymerization of styrene.

    這些丁自由促使聚合速度加快。
  16. We selected styrene as monomer, diethylene glycol dimethacrylate as cross - linking agent. the copolymerization technique was used in preparing the probe. the ph fluorescent indicator was immobilized in the probe as the sensitive element

    我們選擇為聚合單體,雙甲酸一縮二二醇酯為交聯劑,採用交聯共聚技術制備氨多孔塑料傳感探頭,並將ph熒光指示劑固定於共聚體中作為氨的敏感元素。
  17. The test obsvervation include air temperature, ground temperature, foundation moisture, freeze depth, freeze capicity, freeze residual capicity, groundwater table and shape transform of canal lining, etc. throught systemic observation, analysis of impact about each factor on fundation freeze capicity, evaluate effect on anti freeze of various canal lining, comparison on technology and ecnomic of different method, a kind of main canal lining format is been recommended to engineering practice with siutable to ningxia local feature, fufilling the need of main canal safey i application, economic and practical, that is using polystyrene plate laying under concrete slate and grit taking replace of filling layer and optimizing design

    試驗觀測內容包括氣溫、地溫、土含水量、凍深、凍脹量、凍脹剩餘量、地下水位和砌體外觀變化等項目。通過系統的觀測,分析各因素對土凍脹量的影響,評價各種襯砌型式的防凍西安理工大學工程碩士專業學位論文脹效果,並進行技術和經濟綜合分析比較,推薦出了適合我區特點、滿足乾渠安全運行、經濟實用、防凍脹效果好的乾渠防滲襯砌型式,即混凝土板下鋪設聚板和砂礫石換填層結構型式,加以優化設計,用於工程實踐。
  18. The ordered and micro - phase structures of the molecular of pu materials are decided directly by its synthesis technology, composition and other materials compounded with it, and they will influence the possessive properties of pu materials. in this paper, general studies on pu have been carried out by the methods of controlling the prepolymerize technology, taking off dissociative tdi from prepolymer through decompress boiling distilling technology, polymerized in - situ with nano - particles and interpenetrated with ps, the relationship between properties and structure of pu / omt, pu / sio2 nano - composites and pu / ps ipns were characterized by ftir, dmta, tem andtga

    本文用控制預聚體反應中單體的摩爾比、減壓共沸蒸餾去除預聚體中游離tdi 、用納米填料參與聚氨酯原位復合和與聚進行互貫等方法,合成了聚氨酯蒙脫土納米復合材料、聚氨酯sio _ 2納米復合材料和兩步法合成的於聚醚( ppg )和聚酯( 3010 )的聚氨酯互穿網路聚合物材料,研究了其性能;運用ftir 、 dmta 、 tem 、 tga等表徵手段,對復合材料的結構進行了研究。
  19. Raw materials for the rubber industry. carbon black. evaluation of the quality of the carbon black in a styrene - butadiene based mixture

    橡膠工業用原材料.炭黑.丁二苯乙烯基混合物中炭黑質量的評價
  20. The development and the application of metallocene ethylene / octene copolymer were reviewed with 21 references. as a result, these refer - ences were provided for the use and investigation of this new material

    摘要概述了茂金屬共聚物在菜丙、聚、聚酯、聚酰胺、苯乙烯基樹脂等中的應用進展。
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