ring opening 中文意思是什麼

ring opening 解釋
開環作用
  • ring : n 1 圈，環，輪；戒指，指環，耳環，鼻圈，鐲子（等）；【運】吊環。2 輪狀物；【植物；植物學】年輪；...
  • opening : n 1 開，開放；開始，著手；開端，開頭；開場，開幕。2 口，孔，縫，洞；空隙；通路。3 空地，空場；〈...
  1. Activation of calix 6 arene in the ring - opening polymerization of - caprolactone catalyzed by rare earth aryloxide catalysts in low temperature

    己內酯低溫開環聚合中的活化作用
  2. Ring - opening polymerization of - caprolactone catalyzed by the divalent - diketiminate ytterbium complexes

    己內酯開環聚合
  3. Ring opening metathesis polymerization romp

    開環易位聚合
  4. Preparation of caprolactone with ring - opening polymerization

    開環聚合制備聚己內酯
  5. Ring - opening polymerization of - caprolactone catalyzed by rare earth chloride

    己內酯開環聚合
  6. Ring opening polymerization of 3 - morpholinone and - caprolactone with zinc powder as catalyst

    己內酯的開環聚合反應
  7. Using sodium dicyandiamide and saccharin as raw materials, tribenuron - methyl is synthesized via ring - opening reaction, phosgenation and condensation with total yield of 57. 0 % and product purity of 95. 6 %

    以雙氰胺鈉和糖精為起始原料，經過開環、光氣化、縮合等一系列反應制備了苯磺隆，合成反應的總收率可達57 . 0 %以上，純度可達95 . 6 %以上。
  8. Ring - opening polymerization of aliphatic cyclic esters by using organic amino calcium catalyst

    有機氨鈣催化聚合脂肪族環酯
  9. It is mainly synthesized by two chemical ways : ring - opening polymerization and direct polycondensation

    合成聚蘋果酸的化學方法主要有開環聚合法與直接聚合法。
  10. As the content of vermiculite minerals increased, the content of the " intercalated " shape, in which crystal gallery breadth was about of 40nm, also increased. in the curing reaction processing of polybenzoxazine / vermiculite hybrid nanocomposites intercalated with bisphenol a type precursor. according to the content of vermiculite minerals, while different shape of crystal was forming, these crystals were retarding the heat ring - opening polymerization of bisphenol a type precursors in the nanocomposites

    通過對雙酚a型ben蛭石納米插層物固化過程的分析：不同蛭石含量的插層物，在形成不同納米分散狀態固化結構的過程中，蛭石晶片對雙酚a型ben的熱開環聚合有明顯不同的阻礙作用，蛭石含量為3的插層物160的凝膠化時間較純樹脂的延長約7min ，活化能高約8kj mol ，固化反應熱晗低約14j g ，使得固化物的固化程度較純樹脂低約10 ，阻礙作用最大，其它含量的次之。
  11. The methods and mechanisms of thermal, anionic, transition metal catalyzed ring - opening polymerization ( rop ), as well as the structure, property and potential applications of resultant polyferrocenophanes have been described

    對熱引發、陰離子引發、過渡金屬催化等開環聚合方法及機理以及聚合物結構、性能及潛在應用作了介紹。
  12. Study of the ring - opening polymerization of - caprolactone on the surface of biaxially oriented polypropylene film

    膜表面接枝聚己內酯的研究
  13. Living ring opening polymerization

    活性開環聚合
  14. Mirtazapine was prepared by a seven - step reaction, namely nucleophilic ring - opening reaction, chlorination, cyclization, uncleophilic substitution, hydrolysis, reduction and cyclization from styrene oxide and n - methylethanolamine as the starting materials, with overall yield of 22. 6 %

    摘要以環氧苯乙烯和n -甲基乙醇胺為起始原料，經親核開環、氯代和環合反應得到中間體1 -甲基3 -苯基哌嗪。
  15. Nucleophilic ring opening reaction of unsymmetric aziridines and its regioselectivity

    非對稱氮雜環丙烷的親核開環反應及其區域選擇性
  16. Supercritical co2 - mediated preparation of solid acid catalyst and its application in ring - opening polymerization of - caprolactone

    己內酯開環聚合中的應用
  17. Puc18 - 169 was a subcloned plasmid containing the whole operon sequence of l - hydantoinase from arthrobacter bt801 which can convert 5 - benzylhydantoin to l - phenylalanine. hydantoin hydrolase which is responsible for the ring opening of hydantoin is one of the components of hydantoin utility enzymes of arthrobacter bt801. n - carbamoylase is a part of hydantoinase operon which can transform n - carbamoylamino acids into the corresponding amino acids

    節桿菌（ arthrobacter ） bt801是由軍事醫學科學院生物工程研究所保存的l -乙內酰脲酶產酶菌株， puc18 - 169是由本室構建的含有節桿菌bt801的l -乙內酰脲酶完整操縱子序列的亞克隆質粒。
  18. Selective ring opening

    選擇開環反應
  19. Ring - opening polymerization

    開環聚合
  20. Features of ring - opening polymerization of - caprolactone initiated by la 3 - optimal conditions explored by orthogonal experimental design

    用正交試驗法探討最優聚合條件
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