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Anionic styrene polymerization in the presence of dialkylzinc for Polyolefin-Polystyrene block copolymers
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 이분열 | - |
| dc.contributor.author | 박수현 | - |
| dc.date.accessioned | 2018-11-08T08:22:27Z | - |
| dc.date.available | 2018-11-08T08:22:27Z | - |
| dc.date.issued | 2016-08 | - |
| dc.identifier.other | 22807 | - |
| dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/13283 | - |
| dc.description | 학위논문(석사)--아주대학교 일반대학원 :분자과학기술학과,2016. 8 | - |
| dc.description.tableofcontents | Abstract…………………………………………………………...……………… I 1. Introduction ....................................................................................................... 1 2. Results and Discussion ...................................................................................... 3 2.1 Anionic styrene polymerization in the presence of dialkylzinc.............. 3 2.2 Reactivity of -methylstyrene. ……......................................................... 6 3. Conclusions ....................................................................................................... 12 4. Experimental Section ....................................................................................... 13 4.1 General remarks…………………………………................................... 13 4.2 Typical anionic styrene polymerization in the presence of (hexyl)2Zn.13 4.3 Polymerization. ………………………………………………………… 14 4.4 Synthesis of [4-(isopropenyl)benzyl]2Zn ……………………………... 14 4.5 Reaction of (sheme3. (a)) ……………………………………………… 15 4.6 General method of NMR Study ………………………………………. 16 5. Acknowledgements.......................................................................................... 17 6. Reference ......................................................................................................... 18 7. Supporting information .................................................................................. 21 | - |
| dc.language.iso | eng | - |
| dc.publisher | The Graduate School, Ajou University | - |
| dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
| dc.title | Anionic styrene polymerization in the presence of dialkylzinc for Polyolefin-Polystyrene block copolymers | - |
| dc.type | Thesis | - |
| dc.contributor.affiliation | 아주대학교 일반대학원 | - |
| dc.contributor.department | 일반대학원 분자과학기술학과 | - |
| dc.date.awarded | 2016. 8 | - |
| dc.description.degree | Master | - |
| dc.identifier.localId | 758611 | - |
| dc.identifier.url | http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000022807 | - |
| dc.subject.keyword | blockcopolymer | - |
| dc.description.alternativeAbstract | The two representative bulk polymers, polyolefin (PO) and polystyrene (PS) were molecularly connected to form PO-block-PS by sequential performance of the coordination and the anionic polymerizations in one pot. Ethylene/1-octene copolymerization was performed using a typical ansa-metallocene catalyst rac-[Me2Si(2-methylindenyl)]2ZrCl2 activated MMAO in the presence of di(alkyll)zinc to grow PO-chains attaching to zinc site. The anionic polymerization was subsequently performed by feeding nBuLi•(tmeda) (tmeda, N,N,N',N'-tetramethylethylenediamine) initiator and styrene monomer to grow PS-chains at the zinc site consequently attaching to PO-chains. Addition of tmeda played a key role in the growth of the PS-chains at the zinc site. Preparation of other type of PO-based block copolymers is an hot issue in the field of the controlled polymerization. So we found new zinc compound for Polyolefin-Polystyrene copolymers which has 4-(isopropenyl)benzyl. And researching on reactivity of a-methylstyrene. | - |
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- Graduate School of Ajou University > Department of Molecular Science and Technology > 3. Theses(Master)
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