鏈烯基化 的英文怎麼說
中文拼音 [liànxījīhuà]
鏈烯基化
英文
alkenylation-
Consequently, with increasing mmt content, the tensile strength and young ' s modulus of hdpe - g - aa / mmt nanocomposites increased, while that of hdpe / mmt composites decreased. moreover, the addition of mmt to hdpe - g - aa decreased the melting temperature and the degree of crystallization of the matrix. these changes may be attributed to high interfacial adhesion between hdpe - g - aa matrix and exfoliated clay, which reduces the mobility of crystallizable pe chain segments, and subsequently reduces the crystallization ability
研究結果表明： mmt在hdpe中不能達到納米級分散，而在hdpe - g - aa中， mmt能以插層型利剝離型的結構存在，這主要是由於極性的丙烯酸接枝在hdpe上提高了後者的極性，而且能與mmt上的活性基團進行化學反應，從而提高了pe鏈進入mmt層間的可能性，使mmt在基體中達到納米級分散。As to the high - density polyethylene, two strategies were performed : ( 1 ) after being modified by grafting polar groups on its backbone, polyethylene and organic montmorillonite were melt mixed directly, which could obtain the polyethylene / montmorillonite nanocomposites. the effect of groups grafted on the backbone on the efficiency of intercalation was investigated in this paper ; ( 2 ) choosing the grafters obtained in this experiment as the compatilizers, polyethylene / montmorillonite nanocomposites had also been prepared by melt mixing the polyethylene, grafter and organic montmorillonite. the difference of grafters and sequence of mixing on the intercalation result had also been analyzed
對于高密度聚乙烯，採用以下兩種思路進行： （ 1 ）對聚乙烯首先進行功能化改性，使聚乙烯分子鏈上接枝上不同的極性基團，將改性后的聚乙烯再同有機蒙脫土直接熔融復合，成功的制備了聚乙烯蒙脫土納米復合材料，並考察了接枝到聚乙烯主鏈上基團的不同對最終插層效果的影響； （ 2 ）選用制得的接枝物作為相容劑，將聚乙烯，接枝物，有機蒙脫土三者熔融復合，也可以得到聚乙烯蒙脫土納米復合材料，並對選用不同的接枝物作為相容劑以及復合順序對最終插層效果的影響加以分析。By sds - page and immuno - blotting, the monoclonal antibody of anti - chick brain cytoplasmic dynein intermediate chain could recognize the 67 kda protein in purified golgi apparatus fraction from lily pollen. subsequently by immuno - gold labeling and transmission electron microscopy, we found that the dynein intermediate chain - like protein bound mainly to the membranes of golgi - associated vesicles. statistics analysis of dynein intermediate chain - like protein on golgi - associated vesciles showed the nearly equal chance of distribution on either cis - or trans - golgi - associated vesciles
對分離純化的百合花粉及花粉管中高爾基體組分進行sds -聚丙烯酰胺凝膠電泳和免疫印跡發現，抗雞腦細胞質力蛋白中間鏈單克隆抗體在67kda處有較強的免疫交叉反應；進而通過免疫金標結合電子顯微鏡觀察發現，大多數類細胞質力蛋白中間鏈存在於高爾基體附近的囊泡膜上；統計結果表明，類細胞質力蛋白中間鏈在順面和反面高爾基體附近囊泡膜上的分佈機率大致相等。In part 3, the in - situ copolymerization of ethylene was investigated by the combinations of the cobalt - based catalyst and the metallocene to prepare short - branched polyethylene. the major oligomers catalyzed by the cobalt - based catalyst 5, 6 and 7 werel - butene, and the minor were 1 - hexene. the comonomer effects were also observed
在雙亞胺基吡啶鈷配合物與茂金屬復配催化乙烯原位共聚制備短支鏈支化聚乙烯中，合成了3種雙亞胺基吡啶鈷配合物，研究了反應條件對其催化乙烯齊聚活性和所得產物碳數分佈的影響。In microcosmic side, the different molecular weight of pea esterify time was reduced along with the augmentation of molecular weight were approved. the mixture of pea series esterify production, aa, mma were processed tercopolymer by concatenation drop adding fashion during the nitrogen gas protect
在氮氣保護條件下，利用獲得的pea系列酯化物，與丙烯酸、甲基丙烯酸甲酯的混合物通過連續滴加方式進行三元共聚，從鏈轉移劑、 pea ： aa ： mma之間的摩爾百分比和共聚時間等方面進行了系統的研究。The grafted membranes were capable of rejecting an anionic dyestuff. in common with other polyelectrolytes, the conformation of grafted ampsa polymeric chains is sensitive to environmental factors such as ph and ionic strength ( i )
聚丙烯酰胺基甲基丙磺酸為高分子電解質，接枝在膜表面后高分子鏈與溶質分子相互作用，可使接枝鏈構象發生變化，從而改變膜孔徑的大小，使膜具有環境響應。Based on the liquid crystal polymer theory, two kinds of polyacrylates were synthesized by choosing biphenyl group as rigid nucleus of mesophase group and six methylene chain as flexible spacing group. an important chiral additive was synthesized by choosing l ( - ) ~ 2 - octanol as chiral group. mixture was made of the additive and liquid crystalline polymer, which structure was identified by ftit, " ii nmr, dsc and pom
本論文根據液晶分子結構理論，選擇聯苯基作為介晶基元的剛性核、柔性的六亞甲基脂肪鏈為柔性間隔基，與丙烯酸反應，合成了兩種丙烯酸酯型聚合物；以拆分的l （ - ） 2 -辛醇為手性基團合成了一種液晶手性添加劑，並將所合成的手性添加劑與液晶聚合物共混，採用ftit 、 ~ 1h - nmr 、 dsc 、 pom等手段對合成的化合物、共混物進行了表徵。The study of in - situ construction of cytocompatible surface on pdl - la matrix via amphiphile - amino acid ( rgd ) hybrid self - segregation - the amphiphilic diblock copolymer, poly ( dl - lactide ) - poly ( ethylene oxide ) ( pla - peo ) copolymer, containing hydrophobic pla block and hydrophilic peo block was synthesized via coupling method in this dissertation. cell - adhesion - promoting amino acids and integrin receptor peptide rgd were then immobilized at the end of peo chain of pla - peo copolymer via hydroxyl group activation technique. the solvent blending and casting method was then used to obtain the amphiphile modified pdl - la membranes
兩親共聚物-氨基酸（ rgd ）雜化體原位自修飾構建聚乳酸細胞相容性表面的研究一本論文首先設計併合成了一類含疏水聚乳酸（ pla ）鏈段和親水聚氧乙烯（ peo ）鏈段的兩親嵌段共聚物材料（ pla - peo ） ，利用peo鏈端的活性官能團羥基固定了促細胞粘附的氨基酸及整合素配體多肽片段rgd 。It is the especial congregate structure of polymer matrix that is necessary for the forming of three - dimensional interpenetrate network between the polymer and copper. the mma unites lead to the advantage of improving fiexibity of the film, destroying the formal arrangement of macromolecule chain in polymer and decreasing the degree of crystallization. the ita unites help the solvolyzed copper ion transfer in the film and benefite the forming and establishment of the networks of polymer matrix
聚合物基體特殊的聚集態結構是互穿立體網路形成的必要條件，皿m的加入有利於破壞丙烯睹大分子鏈的規整性，使結晶度降低，提高聚合物的柔韌性，含親水基團的單體（ ita 、 as ）存在有利於降低離子遷移的界面能，提供溶劑化銅離子遷移的途徑以及聚合物基體網路結構的形成和穩定。In this paper, we make use of hexadesyltrimethyl, an approximate ammonium compounding ( 15 - ch2 - number 17 ), ocatadecylaminechloried as cation exchange agents. the montorillonite is treated with these agents, which results in marked increase in their organophilic properties. the orgnic - montmorillonite has been identified by x - ray diffraction, different thermal analysis and infrared adsorption spectra
在本文中，我們分別用十六烷基三甲基溴化銨、一種混銨鹽（ 15主鏈- ch2 -數量17 ）和十八烷基氯化銨作為陽離子交換劑，對蒙脫土進行了改性，使之由親水性變成親油性，繼而採用熔融插層方法制備了聚乙烯/蒙脫土復合材料。分享友人