翻訳と辞書 Words near each other ・ Endavant ・ Endband ・ Endcap ・ Endcapping ・ Endcliffe Hall ・ Endcliffe Park ・ Endcliffe Student Village ・ Ende ・ End Zone ・ End zone ・ End-around ・ End-blown flute ・ End-Botomian mass extinction ・ End-diastolic volume ・ End-Ediacaran extinction ・ End-group ・ End-of-file ・ End-of-history illusion ・ End-of-life ・ End-of-life (product) ・ End-of-life care ・ End-of-text character ・ End-of-the-day betting effect ・ End-of-train device ・ End-of-transmission character ・ End-of-year rugby union internationals ・ End-on-end ・ End-plate potential ・ End-sequence profiling ・ End-stopping Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク End-group ： ウィキペディア英語版 End-group End groups are an important aspect of polymer synthesis and characterization. In polymer chemistry, end groups are functionalities or constitutional units that are at the extremity of a macromolecule or oligomer (IUPAC).〔 (IUPAC Gold Book, "end-group" )〕 In polymer synthesis, like condensation polymerization and free-radical types of polymerization, end-groups are commonly used and can be analyzed for example by nuclear magnetic resonance (NMR) to determine the average length of the polymer. Other methods for characterization of polymers where end-groups are used are mass spectrometry and vibrational spectrometry, like infrared and Raman spectrometry. Not only are these groups important for the analysis of the polymer, but they are also useful for grafting to and from a polymer chain to create a new copolymer. One example of an end group is in the polymer poly(ethylene glycol) diacrylate where the end-groups are circled. ==End Groups in Polymer Synthesis== End groups are seen on all polymers and the functionality of those end groups can be important in determining the application of polymers. Each type of polymerization (free radical, condensation or etc.) have end groups that are typical for the polymerization, and knowledge of these can help to identify the type of polymerization method used to form the polymer. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「End-group」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.