聚二甲二烯 的英文怎麼說
中文拼音 [jùèrjiǎèrxī]
聚二甲二烯
英文
polydimethyl butadiene-
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。The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm
本論文以開發無機?有機復合納濾膜為出發點，首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜；選用聚乙烯醇和聚酰胺為表面功能層材料，分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑，採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜；以均苯二甲酰氯、哌嗪和二胺為單體，採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜，並對影響膜性能的諸多因素進行系統研究。Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride
常州濤峰化工有限公司座落在江蘇國際塑化城，是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口，主要經營產品：甲苯、純苯、二甲苯、辛醇、乙酸乙脂、乙酸丁脂、硅油、二苯胺、雙聚丁二酰亞胺、苯三唑衍生物、異丙醇胺、乙醇胺、烷基二苯胺、防垢劑、促進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12柴油流動改進劑、硫磷丁辛基鋅鹽、氯橋酸、氯橋酸酐、氯苯、雙聚環戊二烯、降冰片烯二酸酐等。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。( 2 ) an aminobenthiazole schiff base has been synthesized as a new fluorescence carrier by reacting 2 - aminobenthiazole with p - allyoxybenzoldohyde. the new kind of schiff base can be utilized for preparing an optical sensor, used for determining furazolidone based on the fluorescence quenching. aminobenthiazole schiff base immobilized on a glass plate surface by covalent bonding can circumvent the leakage of the fluorephore from the sensor surface and guarantee a relatively long working lifetime
（ 3 ）用強熒光基團2 -氨基苯並蒽酮與對烯丙氧基苯甲醛合成了另一種新的schiff堿類化合物，與甲基丙烯酸羥乙酯、丙烯酰胺、環乙二醇二丙烯酸酯共聚制得光極膜，制備了一種苯並蒽酮schiff堿光化學傳感器，可用於單質碘的測定。In this paper, pan based metal gradient composites films ( pmgcf ) were prepared by electrochemical reduction. the effect of polymer matrix on pmgcf and preparation and its forming mechanism of pmgcf were invested, they are as follows : lacrylonitrile - methyl - methacrylate copolymer, acryonitrile - itaconic acid copolymer, acrylonitrile - methyl methacry late - sodium allyl sulfonate terpolymer have been synthesized seperately in order to analyze the effects of the mma monomer unites and the hydrophilic unites of acryonitrile terpolymer on the process of copper deposition in polyacrylonitrile - based metal gradient composite film ( pmgcf ) as well as the flexibility of the film
其內容如下： 1通過合成的丙烯腈?甲基丙烯酸甲酯二元共聚物（ p （ an - mma ） ） ，丙烯腈?亞甲基丁二酸二元共聚物（ p （ an - ita ） ） ，丙烯腈-甲基丙烯酸甲酯?丙烯磺酸鈉三元共聚物（ p （ an - mma - as ） ）分別作為基體制備了聚合物基金屬梯度復合膜材料（ pmgcf ） ，以分析加入的mma基團和親水性基團對pmgcf沉積層中金屬銅的梯度分佈形態和膜的柔韌性的影響。Mbs methyl methacrylate - butadiem - styrene copolymer
甲基丙烯酸甲酯一丁二烯一苯乙烯共聚物We specialize in chemical material s, including 1, 4 - butanediol, tetrahydrofuran, ptmeg, polyvinyl alcohol series, sodium diacetate, glacial acetic acid, dibutyl phthalate, methyl acetate, ethyl acetate, n - butyl acetate, - butyrolactone, polyvinyl acetate emulsion series, pentaerythritol, redispersible emulsion, anhydrous sodium acetate and methanol
公司主要經營的產品有： 1 ， 4 -丁二醇，四氫呋喃， ptmeg ，聚乙烯醇系列，雙乙酸鈉，冰醋酸，鄰苯二甲酸二丁酯，醋酸甲酯，醋酸乙酯，醋酸丁酯， -丁內酯，白乳膠系列，季戊四醇，可再分散性乳膠，無水醋酸鈉，甲醇。The products such as chemical intermediate, methyl alcohol, synthetic ammonia, dimethyl carbonate and pvc resin are all being mainly developed
重點發展化學中間體、甲醇、合成氨、碳酸二甲脂、聚氯乙烯樹脂等。Studies on the synthesis of grafted copolymer polyol with dimethyl ally phosphite onto unsaturated flame retardant polyether polyol
不飽和阻燃聚醚多元醇接枝烯丙基膦酸二甲酯共聚物的合成研究The electrostatic spinning technique of producing nano - pan fiber felt was introduced. the relationship of processing parameters with diameter of fiber and the amount of remaining solvent in as - spun fiber were analyzed and the influence of compound solvent of dmf and acetone on properties of fiber was investigated
介紹了用靜電紡絲法紡制納米級聚丙烯腈纖維氈的方法，分析了紡絲工藝條件與纖維的直徑及初生纖維的溶劑殘留量的關系並探討了採用二甲基甲酰胺及適量的丙酮為復合溶劑對纖維性能的影響。A non - destructive method is used to simultaneously determine the content of various kinds of phthalate plasticizers and adipate plasticizers in poly ( vinyl chloride ) plastics, applying fourier transform infrared spectroscopy - atr technique to obtain ir spectra and partial least square method to analyze the spectra
摘要為了在線監控聚氯乙烯塑料中增塑劑的含量，採用傅立葉變換紅外光譜atr技術進行光譜測定，利用偏最小二乘法對所測的譜圖進行分析，建立了聚氯乙烯塑料多種增塑劑的無損定量測定方法，同時測定了聚氯乙烯塑料中多種鄰苯二甲酸酯類增塑劑和多種己二酸酯類增塑劑。The dual - bath coagulation method suggested by j. a. va n ' t hof could be used in membranes with high selectivity clearance rate of low - molecular weight substances and moderate water flux theoretically. therefore it may be applied in the field of hemofiltration. to improve and optimize the performance of the pes ultrafiltration membrane applied in the hf, here the flat membranes and hollow fiber ( hf ) membranes are made in certain conditions based on the dual - bath coagulation method where pes is used as the membrane material, dmso as solvent and pvp & peg as additives this paper includes five parts as follow : 1
為了改善和優化聚醚碸超濾膜（單浴法）在血液過濾實際應用中的性能，本論文以j . a . van ' thof等提出的雙凝固浴法為基礎，以聚醚碸（ pes ）為主要成膜材料，以二甲基亞碸為溶劑，並添加一定分子量的致孔劑（ pvp ，聚乙烯吡咯烷酮）以及一定分子量的添加劑（ peg ，聚乙二醇）按照一定配比在一定溫度下製成透明均一的鑄膜液，靜置脫泡后在一定的工藝條件下製成聚醚碸平板膜和中空纖維膜，然後通過測試膜的結構和性能來評估其用於血液過濾中的前景。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
我們選擇苯乙烯為聚合單體，雙甲基丙烯酸一縮二乙二醇酯為交聯劑，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。Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization.
烯酮，特別是二甲基烯酮，很容易齊聚和聚合。It was confirmed that the key enzyme of coq10 synthesis is p - hydroxybenzoate polyprenyltransferase, encoded by gene ubia in e. coli and lacks specificity to the aggregation length of its substrate ( polyisoprenyl pyrophosphate ). if gene ubia can be introduced into psb and is high expression in psb, a recombinant strain producing coq10 could be obtained. consequently, the productive cost will decrease sharply
業已證實coq _ （ 10 ）生物合成的關鍵酶為對羥基苯甲酸聚異戊二烯焦磷酸轉移酶（在大腸桿菌中該酶由ubia基因編碼） ，該類酶對底物聚異戊二烯焦磷酸（ ppp ）的聚合長度並無特殊要求。In this paper, interpenetrating polymer networks ( ipn ) based on polysiloxane ( pdms ) and poly ( methyl acrylate ) ( pma ) were prepared by using ma monomer and two types of pdms, which viscosities were 3300pa s and 7000pa s respectively. pdms was crosslmked by tetraethyl orthosilicate
本論文制備了聚二甲基硅氧烷與聚丙烯酸甲酯的序列半互穿聚合物網路，其中聚硅氧烷為交聯結構，採用粘度分別為3300pa ? s和7000pa ? s兩個品種，聚丙烯酸甲酯為線性聚合物。The research on the effect of liquid - liquid transition of polyacrylate on crystallization - melting of pdms indicates that above the melting temperature of pdms, pdms is reinforced by a special mutual action between p - electron in carbonyl of polyacrylate and 3d orbit in si atom of pdms, while below the temperature, the pdms crystal is lessened, which can not completely remove the crystal of pdms. however, it is the crystallization behavior of pdms that results in its most segments relaxation being restrained
研究聚丙烯酸酯液一液轉變對聚二甲基硅氧烷結晶一熔融影響的結果表明：碳基碳原子上p電子與出原於中3d軌道相互作用，在聚h甲基硅氧烷熔融轉變溫度以上，對其有分子增強作用；在聚二甲基硅氧烷熔融轉變溫度以下，霎對其有降低結晶度的作用，但不能消除結晶現象。Besides, the paper further touched the research on the relationship of crystallization - melting, transitionrelaxati - on and compatibility with damping properties of polysiloxane / polyacrylate complex damping materials
對聚二甲基硅氧烷聚丙烯酸酯復合阻尼材料的結晶與熔融，轉變與鬆弛，以及相容性與阻尼性能關系進行了研究討論。Latterly, it coupled with ultraviolet absorption spectroscopy ( uvas ), capillary electrophoresis ( ce ) and other apparatuses. up to date, many experimental coatings were prepared and investigated for a wide range of applications
纖維塗層是spme的核心部位，常用的塗層材料多為液相聚合物，如聚二甲基硅氧烷（ pdms ） 、聚丙烯酸酯（ pa ）等。分享友人