離聚物 的英文怎麼說

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離聚物 英文
ionomer
  • : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
  1. Analytical condition were as follows, column : 10 % modified polyethylene glycol 20m on acid washed 201, 2m column with 3 mm i. d., fid as detector, phe - nylmethyl ketone as internal standard compound

    以10 %改性乙二醇20m為固定液,苯乙酮為內標,氫火焰子化檢測器,內標法定量分析異辛酸。
  2. Study on li - series prepolymer by soft ionization ms

    軟電質譜法研究鋰系預
  3. In this article, the bellcore method was used to prepare polymer electrolyte membrane based on pvdf - hfp, and polymer electrolyte membranes under different conditions were prepared by changing sorts of solvents 、 ratio of dbp and solvent. effects of ratio of plasticizer and solvent on the liquid uptake 、 sem 、 mechanism capability 、 ionic conductivity 、 electrochemical stability window of polymer electrolyte membrane were also studied. through optimizing the preparation technics, the integrated effects of additives such as pc 、 ec 、 dbp and nanophase al2o3 on the ionic conductivity 、 liquid uptake were studied

    本文以偏氟乙烯-六氟丙烯共pvdf - hfp為基質,採用bellcore制膜法制備了pvdf - hfp電解質膜,通過改變增塑劑dbp的含量、溶劑的種類及溶劑的含量制備了不同條件下的電解質膜,分別研究了增塑劑含量、溶劑含量等對電解質膜的吸液率、表面形貌、機械性能、子電導率、電化學穩定窗口等的影響;對制備工藝進行了優化,研究了各種添加劑如pc 、 ec 、 dbp及納米al2o3對電解質膜的子電導率、吸液率等性能的綜合影響。
  4. The substitution of pervaporation for traditional separation in organic mixtures is of energy - saving and environment - protecting significance. in this paper, pervaporation of two kinds of organic mixtures is investigated : one is using ca membrane and ca - eva ( ethylene - co - ethylene acetate ) composite membrane for methanol removal from mtbe ( methyl t - butyl ether ), focused on the influence of casting solvent mixtures ; the other is utilizing proper membrane stuff and additive to separate p - xylene from m - xylene

    本文對兩類有機有機混合體系進行了滲透汽化膜過程的研究,其一為醋酸纖維素( ca )膜及ca -乙烯醋酸乙烯共( eva )復合膜用於甲基特丁基醚( mtbe )中少量甲醇( 5 meoh )的脫除,探討鑄膜混合溶劑及后處理技術對膜分性能的影響。其二為運用適當的膜材料及添加劑去除間二甲苯( mx )中的少量對二甲苯( 10 px ) 。
  5. The results of the uni - factor experiments and perpendicular experiments show their best mechanic synthesizing craft as followed : nvp ( 10 % wt ), kh570 ( 20 % wt ), hema ( 70 % wt ), initiator ( 0. 2 % wt ), crosslinker ( 20 % wt ), reacting 20 hours under 80 c. the factors which influenced organic silicon modified pvp hydrogel soft contact lens material ' s swelling capabilities were researched, which included temperature, monomer content, ion concentration etc. the experiments showed the equation swelling content ewc improved with the increase of nw, droped with the increase of kh570 and ion concentration, improved then droped with the raise of temperature, and hydrogels got the least ewc at 45 c. experiment carried on todiscuss water dehydration mechanism of organic silicon modified pvp hydrogel soft contact lens materials, which showed dehydration process could be divided into evaporating stage and diffusing stage

    正交實驗結果表明, nvp ? hema ? kh570共的機械性能最佳時,其合成工藝條件為: nvp用量10 (質量百分含量,下同) , kh570用量20 , hema用量70 ,引發劑aibn用量0 . 2 ,交聯劑nmba用量0 . 2 ,反應溫度為80 ,反應時間16h 。討論了單體配比、溶脹溫度、子濃度等因素對有機硅改性pvp水凝膠軟接觸透鏡材料溶脹性能的影響。實驗得出:水凝膠材料的平衡溶脹度ewc隨單體nvp含量的增加而增大, ewc隨kh570用量的增加而減小,隨子濃度的增大而略微降低,隨溶脹溫度的升高先稍微下降後有所提高, 45時平衡含水量最低。
  6. Volume shrinkage of sample results in the increasing of the value of the crystallization rate vc and the decreasing the values of the avrami exponent n in the primary crystallization and s, defined as the relative crystallinity degree when experiment data deviate theoretical predicting straight line. compared with the avrami equation, the price equation hardly makes progress on describing the behavior of polymer later stage crystallization

    樣品體積收縮,導致avrami指數n值減小;結晶速度v _ c值增加;表示實驗值偏理論預測直線時的相對結晶度_ s值減小;與avrami方程相比, price方程仍不能較準確地描述高等溫後期結晶行為。
  7. A range in relation to an optical system, such as a camera lens, representing distances great enough that light rays reflected from objects within the range may be regarded as parallel

    焦區)無限遠與光學系統(如照像鏡頭)有關的一個范圍,表示距是如此之遠,以至於從在這一距體上反射回來的光可以視為平行光線
  8. The urea - formaldehyde ( uf ) polymer / sio2 composite microspheres were prepared by polymerization - induced colloid aggregation ( pica ) method. the formation mechanism of composite microspheres is attributed to the fact that that urea and formaldehyde firstly undergo acid - catalyzed polymerization to form oligomers, and then the sol particles are adsorbed on the chain of oligomers by wan der walls force and hydrogen bonding. when the oligomers reach the critical chain length, they separate from solution due to phase separation

    對復合微球形成機理的研究表明,尿素和甲醛在酸性條件下自身合可以形成高分子微球,在sio _ 2酸性溶膠中發生和反應時,隨著反應的進行,齊不斷生成, sio _ 2膠體顆粒逐漸吸附在齊分子鏈上,當鏈達到沉澱臨界鏈長時,由於相分作用,從前驅溶液中析出,同時sio _ 2膠體顆粒均勻的分佈在脲醛網路中,隨之沉澱出來,形成脲醛sio _ 2復合微球。
  9. This article confirmed the grafting efficiency of starch grafted to acrylic acid and the structure of starch and its grafted matter through the separation, purification and analysis tests to the grafted copolymer and the grafted forked - chain matter produced from the process of this reaction ; and deduced the formula of the velocity of such reaction mentioned above with a calculated result of the apparent activation energy in this reaction by the curve showing the relationship among the consistency of starch, monomer and initiator and the velocity of the grafting copolymerization

    摘要對澱粉接枝丙烯酸所得接枝共及接枝側鏈進行分提純和分析測試,確定了其接枝效率並表徵了澱粉及其接枝的形態結構;通過分別測定接枝共反應速率與澱粉、單體、引發劑濃度的關系曲線,確定了該接枝共反應的速率關系式;推算出了反應的表觀活化能。
  10. A novel aqueous two - phase system can be formed by the mixtures of a polymer and cationicanionic surfactants. such a system can be used as a partitioning system of proteins. in this work, we investigated the formation, phase behavior and protein partitioning in aqueous two - phase systems formed by dodecyltriethylammonium bromide / sodium dodecylsulfate / peg and dodecyltriethylammonium bromide / sodium dodecylsulfate / dextran. the ligands with affinity were attached to the polymers and the affinity partitioning of proteins was investigated. it was shown that the surfactants and polymers are enriched in different phases of aqueous two - phase systems. phase separation are promoted by increasing temperature and adding inorganic salts. different proteins are partitioned in different phases. the selectivity of protein partitioning is increased by adding ligands with affinity

    報道了由正負子表面活性劑與高混合溶液形成的一種可用於蛋白質的分及分析的新型雙水相萃取體系.研究了正負子表面活性劑(溴化十二烷基三乙銨/十二烷基硫酸鈉)分別與葡糖和乙二醇混合雙水相體系的形成規律、相行為及牛血清蛋白和溶菌酶在雙水相體系中的分配.通過在高分子中接上親和配基,研究蛋白質在雙水相體系中的親和分配.結果表明,在該體系中,表面活性劑與高分別富集於不同相中.升高溫度及加入無機鹽均可促進雙水相體系的形成,不同蛋白質可分配于不同的相中.親和配基的引入極大地增強了蛋白質分配的選擇性
  11. Advances in study on ionomers

    離聚物研究進展
  12. Cell adhesion to surface of the substrate is essential to development of the anchorage - dependent cells. only after adhering to surface followed by spreading can cells develop and proliferate. most synthetic polymers used as orthopaedic matrix substitute present hydrophobicity, which may correlates to the low degree of cell attachment. modification with cell adhesion protein / peptides can be benificial to the cell adhesion on polymers and then affect the cell proliferation and differentiation. cell attachment to substrate is primarily mediated by integrins, a widely expressed family of heterodimeric surface receptors. most extrcellular matrix proteins such as fibronectin, osteopontin, collagen type i, bone sialoprotein and vitronectin contain an arg - gly - asp ( rgd ) sequence which is specific to the fixation of cell membrane receptors like integrin. the main aim of this research is to measure, assess adhesion, proliferation of rabbit marrow stromal cells ( mscs ) on the polymers coated by fibronectin, collagen type i or biotie gen, which includes : ( 1 ) biologic characteristics of rabbit mscs were observed by two types of separating method in primary culture. ( 2 ) adhesion, proliferation and differentiation of mscs cultured on polymers coated with biotiegen were assessed. ( 3 ) also, adhesion, proliferation and differentiation of mscs were assessed on plga film or porous plga substrates coated with fibronectin, or collagen type i respectively. ( 4 ) bone formation was observed on the porous plga substrates coated with collagen type i in vivo. this research aims to give new way to make novel synthetic bone with cell adhesion and high bone induction capabilities

    因此將這些蛋白包被、固定到材料表面,觀察骨組織工程種子細胞mscs細胞的粘附、生長特性是本研究的中心環節,並從以下方面進行探討: ( 1 )採用不同原代細胞分方法,研究其對mscs細胞的生學特性影響。 ( 2 )檢測基因勝肽膠對mscs細胞粘附、增殖及分化的影響。 ( 3 )分別採用型膠原及纖維粘連蛋白( fibronectin , fn )包被乙醇酸-乳酸共( poly ( 1actide - co - glycolide ) , plga )膜及多孔塊型plga材料,觀察細胞在單層或三維培養狀態下,型膠原及fn對mscs細胞粘附、增殖及向成骨細胞分化效應及能力。
  13. In this study, it has been put forward that taking reactive nanometer magnetic fe304 particles as magnetic nucleus, and the copolymer of styrene ( st ) ? crylic acid ( aa ) as macromolecular shell, we could synthesize, magnetic polymer composite microspheres containing carboxyl groups on their surface, then microspheres are activated by thionylchloride, the surface of such magnetic composite microspheres thus produced had reactive acid chloride groups which then react with the free amino groups of the free soluble enzymes to give peptide bonds ( ? o ? h ?,

    本研究首次提出了以納米級磁性fe _ 3o _ 4粒子為核心,苯乙烯( st ) ?丙烯酸( aa )共為高分子殼層,合成了表面帶羧基的磁性高分子復合微球,然後將這種微球用二氯亞碸進行活化處理,在其表面形成了反應性酰氯基團,該基團可以與游酶的氨基形成肽鍵,從而將游酶固定化。
  14. This charged fiber can be directed or accelerated by electrical forces and then collected in mats or other useful geometrical forms. the diameters of electrospun fibers are in the range of tens of nanometers to several micrometers. in this paper, polyacrylonitrile ( pan ) nanofibers are made by electrospinning pan / dimethylformamide ( dmf ) and pan / dimethylacetamide ( dmac ) with adjusting the main process parameters including electrostatic voltage ( 20 ~ 50kv ), sprinkler aperture ( 0. 5 ~ 0. 8mm ), collection distance ( 15 ~ 25cm ), solution concentration ( 6 wt % - 14 wt % )

    本文主要對丙烯腈( pan )二甲基甲酰胺( dmf ) 、 pan二甲基已酰胺( dmac )體系進行電紡絲,調節靜電壓( 20 50kv ) 、噴頭孔徑( 0 . 5 0 . 8mm ) 、接收距( 15 25cm ) 、溶液濃度( 6wt 14wt )等過程參數,制得pan納米纖維,纖維平均直徑在200 1000nm ;詳細分析了過程參數對纖維細度、形態等的影響,認為高溶液濃度及靜電壓對纖維細度有決定性影響,其它過程參數如接收距、噴射孔徑、紡絲溶液溫度、溶液電導率等的調整應以這兩參數為基礎進行。
  15. Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction

    目的:分析熱致相分成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素,以便充分掌握影響孔度大小、分佈、形態的因素,使孔度調控范圍得以拓寬,使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發,分析熱致相分多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分法可制備多孔膜.熱致相分法制備多孔膜是高均相溶液在淬冷條件下發生相分的過程,它適用於上臨界共溶溫度型一稀釋劑二元體系.熱致相分法成膜的過程,可以認為是旋節線機理佔主導地位.熱致相分法制備的微孔材料,其孔隙率、孔徑大小、結構形態與稀釋劑的種類、組成配比、濃度、分子量等因素密切相關.結論:可採用熱致相分技術制備多孔膜,通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分成膜過程中-溶劑體系的相圖測定,不同厚度的多孔膜形貌研究,不同x (-溶劑相互作用參數)體系所制備的多孔膜形貌等需深人研究
  16. Four types of starch derivatives containing azo groups were used in removal of some metal ions from their solutions, and the different factors affecting metal ions adsorption on these copolymers, such as ph, metal ion concentration, types of starch derivatives, treatment time and temperature was premarily studied at first

    摘要合成了4種偶氮化合與澱粉的接枝共的不溶性樹脂,首次用以吸附二價金屬子,研究了其靜態吸附量以及各種相關因素對吸附的影響。
  17. Segmented polyurethanes containing amorphous or crystalline soft segments as reversible phase and crosslink points as fixed phase can exhibit shape - memory properties

    摘要氨酯是一種具有微相分本體結構的多嵌段共,可通過調節原料的組成和配比,得到性能各異的新型功能高分子材料。
  18. And smoke supperession of eva copolymer by plasma grafting of acrylamide

    子體接枝丙烯酰胺的阻燃及抑煙性能
  19. The results showed that it is impossible for " island - sea " structure non - compatible blend polymer to form interfacial phase separated micro - void after being drawn

    結果表明對于「海?島結構」非相容性共混高中空纖維,經拉伸后,能形成相界面分孔。
  20. Professor wei s another research area is mathematical theory of material science, with focus on the morphology of block copolymers. block copolymers are soft, synthetic materials developed to have exquisite mechanical, electrical, optical, ionic and barrier properties for industrial and commercial use

    魏教授另一項研究是料科學的數學理論,主要是大塊共( blockcopolymer )的形態學。大塊共是一種柔軟的合成質,擁有特殊的機械學、電學、光學,以及子和屏障的性質,有廣泛的工商業應用價值。
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