| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Systematic Control of Sulfur Chain Length of High Refractive Index, Transparent Sulfur-containing Polymers with Enhanced Thermal Stability |
| 초록 |
High refractive index polymers (HRIPs) have received many attention in the optoelectronic applications. HRIPs based on elemental sulfur (S8), with the presence of long polysulfide with broad distribution, showed poor thermal stability as well as optical devaluation. Herein, we report a one-step synthesis of a HRIP film with maximaized thermal stability directly from S8 through sulfur chemical vapor deposition (sCVD). By elevating process temperatrue, a sulfur-containing polymer was newly prepared, from which length and distribution of polysulfide were tuned as short and narrow as possible, respectively. The HRIPs was fully transparent in visible range showed unprecedentedly high glass transition temperatrue (Tg) of 110 ℃, which is one of the highest among the HRIPs with refractive index over 1.8. The HRIPs did not show any distinct degradation even at 130 ℃ for 3 hours. The thermally-fortified HRIP films will be widely used in the optical device applications with prolonged stability. |
| 저자 |
최건우1, 장원태1, 최지성2, 차국헌3, 임지우2, 임성갑1
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| 소속 |
1한국과학기술원, 2경희대, 3서울대 |
| 키워드 |
High refractive index polymers (HRIPs); sulfur chemical vapor deposition (sCVD); sulfur rank; thermal stability; glass transition temperature
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| E-Mail |
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