| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Design of amine modified polymer dispersants for liquid-phase exfoliation of transition metal dichalcogenide nanosheets and their photodetective applications |
| 초록 |
Non-destructive exfoliation of nanosheets using macromolecular dispersing agents is advantageous in rendering the TMD nanocomposite films appropriate for flexible devices. Here, an efficient liquid phase exfoliation of molybdenum disulfide (MoS2) with an amine modified poly(styrene-co-maleic anhydride) co-polymer (AM-PSMA) is demonstrated, wherein the maleic anhydrides were converted into maleic imides with primary amines using N-Boc-(CH2)n-NH2. The exfoliation of nanosheets was facilitated through Lewis acid-base interaction between the primary amine and transition metal. The results demonstrate that the exfoliation depends upon both the fraction of primary amines in the polymer chain and their distance from the polymer backbone. Moreover, a flexible composite film of AM-PSMA and MoS2 nanosheets fabricated by vacuum-assisted filtration showed outstanding photoconductive performances. |
| 저자 |
이혁중, 박철민
|
| 소속 |
연세대 |
| 키워드 |
amine modified polymers; lewis acid-base interaction; transition metal dichalcogenides; liquid-phase exfoliation; visible-light photodetectors
|
| E-Mail |
|
