chain polymerization 中文意思是什麼

chain polymerization 解釋
連鎖聚合反應
  • chain : n 1 鏈子，鏈條；項圈；表鏈。2 連鎖；連續，一系列，一連串；（山）脈。3 〈常 pl 〉鐐銬；羈絆，拘束...
  • polymerization : 聚合酌
  1. In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased

    同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。
  2. The article analyze the concrete drying shrinkage mechanism, find the major factors of affecting the drying shrinkage, analyze the lack of shrinkage reducing agent, who be of low molecular weight and line chain, design a new shrinkage reducing agent ? ? shrinkage reducing agent of poly - acrylate. the shrinkage reducing agent of poly - acrylate is mainly composed of crylic acid 、 cinnamene 、 poly - glycol 、 solicitating agent 、 chain transferring agent and activator, which come by these processes of polymerization 、 esterifing and neutralization to form a pectinate polymer, which have a high molecular weight and many poly - oxidative alkenes

    論文分析了混凝土乾燥收縮的機理，確定了影響乾燥收縮的關鍵因素，分析已有低分子量的、直鏈型減縮劑的不足，設計了一種新型的減縮劑? ?聚丙烯酸鹽類減縮劑，其主要由丙烯酸、苯乙烯、聚乙二醇、引發劑、鏈轉移劑、催化劑等經過聚合、酯化和中和反應，生成一種高分子量的、含聚氧化烯鏈的聚合物。
  3. In this paper, two kinds of polyazomethine / nylon - 6 ( pam / pa - 6 ) composites with different chemical structures were prepared by means of in - situ polymerization. pam1 and pam2 were prepared from the reaction of terephthalaldehyde with l, 6 - hexanediamine ( paml ), and terephthalaldehyde with 4, 4 ' - diamiediphenyl ( pam2 ). during the preparation, pam chain ends played a retard role in the polymerization of s - caprolactam obviously

    本文通過原位聚合法制備了兩種不同化學結構的聚甲亞胺尼龍6 （ pam pa6 ）分子復合材料， pam1為對苯二甲醛與1 ， 6 -己二胺反應制備的聚甲亞胺， pam2為對苯二甲醛與4 ， 4 』 -二氨基二苯醚合成的聚甲亞胺。
  4. 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聚合可以形成高分子微球，在sio _ 2酸性溶膠中發生聚和反應時，隨著反應的進行，齊聚物不斷生成， sio _ 2膠體顆粒逐漸吸附在齊聚物分子鏈上，當聚合物鏈達到沉澱臨界鏈長時，由於相分離作用，從前驅物溶液中析出，同時sio _ 2膠體顆粒均勻的分佈在脲醛聚合物網路中，隨之沉澱出來，形成脲醛sio _ 2復合微球。
  5. However, most of those flame retardants will reduce the other properties of materials at the same time. to overcome this drawback, a reactive flame retardant, which was incorporated in the main chain of pet, was used and an intercalative polymerization to layered silicates was conducted so as to prepare novel flame - retardant copolyesters / layered silicate nanocomposites

    為了克服這一缺點，我們在引入一種反應型含磷阻燃劑的同時，通過插層聚合的方法合成了一種新型的聚合物材料：主鏈含磷阻燃共聚酯層狀硅酸鹽納米復合材料，以期在提高聚合物阻燃性的同時，亦改善材料的其它性能。
  6. The length of the polymer chain is specified by the number of repeat units in the chain. this is called the degree of polymerization

    聚合物鏈的長度可以用鏈中重復單元數來表示，叫做聚合度。
  7. According to this, we have deduced that branching reaction must have been happened during the polymerization which has been caused by chain transfer at high conversion rate

    說明聚合反應中發生了鏈的支化反應，這是由於高轉化率時，大分子發生鏈轉移所引起的。
  8. Effect of main - chain structure on solid - phase grafting polymerization of styrene in spherical polypropylene granules

    主鏈結構對聚丙烯球形粒子中苯乙烯固相接枝聚合的影響
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