聚甲基苯 的英文怎麼說
中文拼音 [jùjiǎjīběn]
聚甲基苯
英文
polymethyl benzen-
The chloromethylation of acetanilide and its derivatives in a polyformaldehyde - hc1 system gave n - substituted products as the major product
摘要?察了乙酰苯胺及其衍生物在多聚甲醛鹽酸體系下的氯甲基化反應,結果表明, n -氯甲基化反應的產物是主要產物。Manufacturer of fine chemicals, and pharmaceutical and agrochemical intermediates, offering a small but diverse range of predominantly aromatic chemicals. located in shanghai and lanxi, china
-生產芐胺,鄰氯苯甲酰氯,對氯苯甲酰氯, n甲基芐胺, -苯乙胺,糠胺,四甲基己二胺,延遲催化劑,聚氨酯催化劑,農藥中間體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 、甲基丙烯酸甲酯( mmal苯乙烯舊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。Boracic modified penolic resin with boracic acid and hydroxymethyl phenol was manufactured after hydroxymethyl phenol was created with in a special way
摘要通過在一定條件下,先將苯酚、甲醛製成羥甲基酚,然後改變條件與硼酸共聚,制得具有合成穩定和較好耐熱性的硼改性酚醛共聚樹脂。The other conjugation polymer was formed by copolymerization of n - ( a - naphthyl ) carbazole with l, 4 - di ( chloromethyl ) benzene. the third organic molecule was synthesized by heck reaction with 9, 9 - di [ ( 4 - iodine ) phenyl ] fluorene and vinylcarbazole
一個共軛高聚物為n - ( -萘基)咔唑和對二氯甲基苯通過wittig - horner反應聚合得到的高分子化合物。A mixture of catechin and epicatechin, procyanidin b4, 4 - hydroxy - benzoic acid and ethyl gal - late were purified and identified from grape seed procyanidin extract
得到2種原花青素的單體: ( + ) -兒茶素和( - ) -表兒茶素; 1種原花青素二聚體b4 ; 2種其他酚類物質:對羥基苯甲酸及沒食子酸乙酯。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,氯甲基化聚苯乙烯聚乙二醇、一縮二乙二醇、二縮三乙二醇、乙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。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
以丙烯酸、丙烯酸酯、甲基丙烯酸、甲基丙烯酸酯等作為基料,在引發劑的存在下,以水或醇作溶劑進行聚合,加入苯乙烯、醋酸乙烯等改性,合成了3種不同的水溶性丙烯酸改性樹脂,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Talc, zinc stearate, phenyl trimethicone, iron oxide brown, ferric ammonium ferrocyanide, chrome oxide green, ultramarine blue, hydrated chrome oxide green
滑石,硬脂酸鋅,苯基三甲基聚矽氧烷,氧化鐵棕,氧化鐵氨,氧化鉻綠,人工合成群青藍,水氧化鉻綠。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苯乙烯( ps ) /聚甲基乙烯基醚( pvme ) ,三元均聚共混體系聚苯乙烯( ps ) /聚甲基乙烯基醚( pvme ) /聚2 , 6 -二甲基1 , 4 -苯撐氧( 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,在此基礎上進一步研究了聚合物的分子量對體系相行為的影響。Characterization of poly p - methylstyrene - b - isobutylene - b - p - methylstyrene
對甲基苯乙烯和異丁烯三嵌段共聚物的分析與表徵Poly - o - toluidine ( pot ) is selected as the electro - catalyst of 2, 5 - dimercaptan - 1, 3, 4 - thiadiazole ( dmct ) because the solubility of pot in organic solvents is much higher than that of pan. therefore, dmct can contact with pot at molecular level. it suggests that the oxidative reaction order is 2 and the reduced reaction order is 1 by testing its electrode kinetics
聚苯胺難以溶於有機溶劑,因此選用易溶於有機溶劑的聚苯胺衍生物聚鄰甲基苯胺( pot )作有機硫化合物2 , 5 -二巰基- 1 , 3 , 4 -噻二唑( dmct )的電催化劑,兩者可以達到分子水平的復合。For this purpose, 2, 5 - diaminobenzene sulphonic acid ( dabsa ) [ c6h3 ( nh2 ) 2so3h ] can be selected as one monomer of ip reaction. the other monomer can be trimesoyl chloride ( tmc ) [ c6h3 ( coc1 ) 3 ]. in order to introduce the cationic group into membrane, 4 - ( chloromethyl ) benzoyl chloride ( cmbc ) [ ch2c1c6h4 ( coc1 ) ] could be added into organic phase ( tmc ) and used for chemical modification after ip process based on the reaction between 4 - ( chloromethyl ) benzoyl chloride and trimethylamine ( tma )
為了引入陽離子交換基團,本文採用2 , 5 -二胺基苯磺酸作為界面聚合的無機相單體;為了引入陰離子交換基團,在均苯三甲酰氯有機相單體中加入一定量的4 -氯甲基苯酰氯,並考慮在無機相中加入適量的聚乙烯亞胺( pei )以增加其正荷電性。This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away
本論文主要包括三個方面的研究內容: ?氯化聚乙烯( cpe ) /壓電陶瓷( pzt ) /氣相生長碳纖維( vgcf )復合材料; ? cpe /雙[ ( 2 -羥基- 3 -環己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf復合材料; ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料:利用壓電和導電填料填充高聚物基體,當復合材料受到機械振動時,通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上,利用壓電陶瓷的壓電效應,將機械能轉換成電能,則電流在導電粒子產生的迴路中流動,由於導電迴路具有一定的電阻,所以電能又轉變成熱能耗散掉,從而起到減振的目的。The molecular weight of sppms was in the range of 4x 104g / mol to 10 x 104g / mol, and the molecular weight distribution was from 1. 6 to 6. 0
P -甲基苯乙烯與苯乙烯共聚時, p -甲基苯乙烯共聚能力高於苯乙烯,二者傾向于無規共聚,仍為間規聚合物。Comparison of the diffusion coefficients calculated by this new model with the present experimental data, including benzene, toluene, ethylbenzene in polystyrene ( ps ) and poly ( methyl methacrylate ) ( pmma ) are performed, calculation results in this study are in good agreement with experimental data, for the correct estimation of the hole - free volume change above and below the glass transition
以芳香族溶劑苯、甲苯、乙苯在玻璃態聚苯乙烯和聚甲基丙烯酸甲酯中的擴散系數為例對模型進行驗證,理論計算結果和實驗值取得良好一致。Sms styrene methylstyrene copolymer
苯乙烯一甲基苯乙共聚物The aim of this thesis is in search of the catalysts which are moderate and stable for preparing mono - dispersed macroporous materials, by means of syndiotactic polymerization of styrene
並且將部分催化劑用於苯乙烯與p -甲基苯乙烯共聚合、苯乙烯與乙烯共聚合,對材料的功能化作了初步的探討。A kind of chiral azo molecule derived from amino acid, n - [ 4 - ( 4 - dodecyloxyphenylazo ) benzoyl ] - l - glutamic acid ( c12 - azo - l - glu ), was investigated. the photochromism, photoinduced birefringence, and holographic recording in c12 - azo - l - glu doped poly ( methyl methacrylate ) ( pmma ) films were studied. c12 - azo - l - glu underwent a reversible tram - cis - trans isomerization in the polymer matrix
我們利用手性偶氮苯染料c _ ( 12 ) - azo - l - glu摻雜聚甲基丙稀酸甲脂( pmma )薄膜為實驗樣品,對其光致變色過程,光致雙折射和全息存儲特性進行了研究分析。The copolymerizations of p - methylstyrene and styrene, styrene and ethylene were also investigated using some of these catalytic systems. the three kinds of catalysts showed their own polymerization principles. the changes of polymerization activity and polymer properties depended on the structure of complexes, different polymerization conditions such as the catalyst concentration, the molar ratio of al to ti, the polymerization temperature and reaction time
三類催化劑催化苯乙烯和p -甲基苯乙烯均聚時都有各自一定的聚合規律,不同的配體結構,聚合條件催化劑濃度、鋁鈦比、聚合溫度和反應時間對聚合活性以及聚合物的性質有很大影響。分享友人