| DC 欄位 |
值 |
語言 |
| DC.contributor | 化學學系 | zh_TW |
| DC.creator | 吳成修 | zh_TW |
| DC.creator | Chang-Siou Wu | en_US |
| dc.date.accessioned | 2023-8-15T07:39:07Z | |
| dc.date.available | 2023-8-15T07:39:07Z | |
| dc.date.issued | 2023 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=109223068 | |
| dc.contributor.department | 化學學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 本研究成功合成出具有四個配位點的氨基配位基，並且與叔丁醇鈉和叔丁醇鉀反應，合成出錯合物Na-1-tBuOH、Na-1、Na-1-nBuOH、K-1-tBuOH、K-2。這些催化劑對ε-Caprolactone、L-Lactide及γ-Valerolactone都具有相當高的活性。K-1-tBuOH對ε-Caprolactone單體的催化中，在分子數比為單體:催化劑:起始劑=100:1:1的催化條件下，4分鐘的反應時間內可達到96%的轉換率，且有優異的分子量分布度(PDI=1.13)。Na-1-tBuOH活性較略低於K-1-tBuOH，於單體:催化劑:起始劑=100:1:1條件下，反應16分鐘可達98%轉換率，但分子量分布度較鉀略有提升 (PDI=1.09)。因此，此類催化劑對於開環聚合反應的應用具有相當高的潛力。 | zh_TW |
| dc.description.abstract | This study successfully synthesized amino ligands with four coordination sites and reacted them with sodium tert-butoxide and potassium tert-butoxide, resulting in the formation of the corresponding coordination complexes Na-1-tBuOH, Na-1,Na-1-nBuOH,Na-2-tBuOH, K-1-tBuOH, and K-2. These five catalysts exhibited high activity towards ε-Caprolactone, L-Lactide, and γ-Valerolactone. Among them, K-1-tBuOH showed excellent catalytic activity for ε-Caprolactone monomer under the conditions of monomer:catalyst:initiator molar ratio of 100:1:1 and a reaction time of 4 minutes, achieving a conversion rate of 96% with a remarkable molecular weight distribution (PDI=1.13). Na-1-tBuOH exhibited slightly lower activity than K-1-tBuOH, reaching a conversion rate of 98% after 16 minutes of reaction time under the same conditions, but with a slightly improved molecular weight distribution (PDI=1.09) compared to potassium. Therefore, these types of catalysts show great potential for applications in ring-opening polymerization reactions. | en_US |
| DC.subject | 開環聚合反應 | zh_TW |
| DC.subject | 內酯 | zh_TW |
| DC.subject | ring-opening polymerization | en_US |
| DC.subject | lactone | en_US |
| DC.title | 鈉、鉀之四牙配體錯合物用於內酯之開環聚合反應 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Sodium and potassium tetradentate ligand complexes are used in the ring-opening polymerization of lactones | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |