| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Optimization of Thermomechanical Properties of Sulfur Copolymers by Thermal Annealing Process |
| 초록 |
Polymeric sulfur has been applied in numerous fields including energy storage and harvesting applications and infra-red optics owing to low-cost and facile synthesis. However, there are often limitations in utilizing polymeric sulfur for practical applications due to their poor thermomechanical properties including low dimensional stability and low glass transition temperature, Tg. It is expected that thermomechanical properties can be improved through thermal annealing which removes unreacted sulfur because it can act as a defect. Herein, we present systematic studies on thermomechanical properties of elemental sulfur (S)-divinylbenzene (DVB) copolymers with various sulfur contents as well as annealing temperature and time. After annealing process, the storage modulus of the S-DVB enhanced up to 20% from 1.8 GPa and the Tg of the S-DVB increased by 104 ⁰C from 86 ⁰C. Finally, thermomechanical properties of S-DVB improve to the extent that it can be utilized in various regions. |
| 저자 |
한나라1, 조웅비1, 황제혁2, 원수경1, 김동균2, 위정재1
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| 소속 |
1인하대, 2한국화학(연) |
| 키워드 |
Sulfur copolymer; Thermal annealing; Thermochemical property
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| E-Mail |
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