WEKO3
アイテム
Synthesis of chitin-graft-polystyrene via atom transfer radical polymerization initiated from a chitin macroinitiator
http://hdl.handle.net/10232/20539
http://hdl.handle.net/10232/2053954f9451b-eb88-4770-9a68-9fbc9eca1798
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KADOKAWA_Chitin_ATRP_rev.pdf (798.5 kB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-12-22 | |||||
| タイトル | ||||||
| タイトル | Synthesis of chitin-graft-polystyrene via atom transfer radical polymerization initiated from a chitin macroinitiator | |||||
| タイトル言語 | en | |||||
| 著者 |
山元, 和哉
× 山元, 和哉× ヨシダ, ショウ× ミネ, ショウザブロウ× 門川, 淳一 |
|||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | In this study, we synthesized chitin-graft-polystyrene by graft polymerization of styrene from a chitin macroinitiator via atom transfer radical polymerization (ATRP). First, the chitin macroinitiators for ATRP were synthesized by acylation of chitin with 2-bromopropionyl bromide in 1-allyl-3-methylimidazolium bromide (AMIMBr) ionic liquid. Because the products, which were obtained from reactions using 20 and 30 equiv. of 2-bromopropionyl bromide per repeating unit of chitin, were soluble in DMSO, the degrees of substitution (DS) values were calculated by 1H NMR measurement in DMSO-d6 to be 1.66 and 1.86, respectively. Then, graft polymerization of styrene from the obtained chitin macroinitiator with DS = 1.86 was performed by ATRP using N,N,N′,N′′,N′′-pentamethyldiethylene triamine and CuBr as the catalytic system. The yields of the products increased with increasing the feed ratios of styrene to chitin macroinitiator initiating site. To estimate the Mn values of the grafted polystyrenes (PSs), furthermore, separation of the PS chains from the chitin main-chain was conducted using alkaline hydrolysis. Their GPC traces were monomodal and the Mn values calculated using polystyrene standards increased with increasing the feed ratios of styrene to initiating sites. | |||||
| 内容記述言語 | en | |||||
| 収録雑誌名 |
en : Polymer Chemistry 巻 4, 号 11, p. 3384-3389, 発行日 2013 |
|||||
| 作成日 | ||||||
| 日付 | 2013-03-18 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 17599954 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| DOI | https://doi.org/10.1039/c3py00152k | |||||
| 権利 | ||||||
| 権利情報の言語 | en | |||||
| 権利情報 | Royal Society of Chemistry | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| NDC | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 437 | |||||
| 公開者・出版者 | ||||||
| 出版者 | Royal Society of Chemistry | |||||
| 出版者言語 | en | |||||
| 備考 | ||||||
| 備考 | The final published article on the RSC's website: http://dx.doi.org/10.1039/c3py00152k | |||||
