신소재공학과

행사일  
2014년 6월 12일 (목) 개최되는 특별 세미나를 아래와 같이 안내해드립니다.


= 아 래 =


1. 일 시 : 2014. 6. 12 (목), 16:30 ~
2. 장 소 : 신소재공학과 2417호 강의실
3. 연 사 : 정호용 교수 (Florida State University 부임예정)
4. 제 목 : Chemistry and Applications of Biologically-Inspired and Bio-Derived Polymers
5. 발표내용요약(Abstract)

  Polymer science and materials science are inseparable fields. It is amazing to look at the recent advances in polymer science being used for various materials applications, however, there are still many remaining aspects to be learned from nature for advanced polymer applications. Among many recent bioinspired materials, bio-adhesives are gaining extensive interest in the bio-polymer community. One example is the polymers used by marine organisms such as mussels. The key feature of mussels-inspired adhesives is strong adhesion in water. The wet adhesion properties are derived from a special amino acid, 3,4-dihydroxylphenylalanine (DOPA). This DOPA moiety was thus integrated into various artificial polymers as a way to overcome the limitations of current artificial adhesives, namely their poor wet adhesion properties. The strong wet adhesion can be applied to biomedical adhesives because the human body is composed of 60% water. A new pressure sensitive adhesive was also developed from DOPA containing polymers that was combined with microfibrillar structures inspired from Gecko’s feet. The new pressure sensitive adhesive showed excellent repeatable dry/wet adhesion. The DOPA containing adhesive’s chemical structure-property relation, viscoelasticity, coating technique and aging have been extensively studied to enhance the material’s adhesion properties. Lignin is the second most abundant biopolymer derived from plants, and it is a major byproduct from pulp and paper production. However, lignin’s utility is limited because of its complex chemical structure, low reactivity, poor processability and variability depending on source and extraction method. Therefore, new methods of lignin modification are required to use lignin productively for commodity materials. A Lewis-acid-catalyzed modification was developed to copolymerize the lignin with petroleum-derived polymers. Many state of the art methods, such as controlled radical polymerization and click chemistry, were successfully performed to integrate lignin and the synthetic polymers. The prepared lignin-based polymers showed enhanced mechanical properties in many aspects and can be a promising renewable and sustainable biomaterials.

No. Subject Author Date Views
Notice 7/25 (Wed) 김창섭 박사 (Department of MSE, MIT) ADMINI 2018.07.24 17
Notice 7/13 (Fri) Prof. Dong Ryeol Whang (Johannes Kepler University Linz,Austria) ADMINI 2018.07.09 13
Notice 6/5 (Tue) 이성환 교수 (Baylor University) ADMINI 2018.06.05 54
Notice 5/29 (Tue) 오상호 교수 (연세대학교 의과대학 피부과학교실) ADMINI 2018.05.29 51
Notice 5/15 (Tue) 김명길 교수 (중앙대 화학과) ADMINI 2018.05.15 93
132 11/28 (금) 오태식 박사 (University of Pennsylvania) Administrator 2014.11.26 2095
131 11/14 (금) Dr. Amanda K. Petford-Long (Argonne National Laboratory) file Administrator 2014.11.04 2044
130 2014 가을학기 정기세미나 일정 Administrator 2014.08.28 4486
129 8/25 (월) 김 현 석 교수(충남대학교 재료공학과) Administrator 2014.08.26 2536
128 8/21 (목) Prof. Frans Spaepen (Harvard University, School of Engineering and Applied Sciences) Administrator 2014.08.14 2134
127 7/21 (월) Jamie Warner (University of Oxford) Administrator 2014.07.16 2593
» 6/12 (목) 정호용 교수 (Florida State University 부임예정) Administrator 2014.06.09 2827
125 6/10 (화) 강성모 총장님 (KAIST) Administrator 2014.06.09 2106
124 6/3 (화) Prof. Alfredo Alexander-Katz (Dept. of MSE, MIT) Administrator 2014.06.03 3078
123 5/20 (화) 윤석진 박사 (한국과학기술연구원, 연구기획조정본부장) Administrator 2014.05.14 2743
122 5/14 (수) 김윤섭 (Univ. of Michigan, Ph.D. candidate) Administrator 2014.05.14 2566
121 4/30 (수) 김지환 박사 (IBM T.J. Watson Research Center) Administrator 2014.05.01 3067
120 4/29 (화) Dr. Aron Walsh (Univ. of Bath, UK) Administrator 2014.05.01 2097
119 4/29 (화) 박상희 교수 (KAIST 신소재공학과) Administrator 2014.04.23 3051
118 4/22 (화) 조은애 박사 (Fuel Cell Research Center, KIST) Administrator 2014.04.21 3449
117 4/15 (화) 김수호 박사 (Chief Technology Offiicer, Alantum Corporation) Administrator 2014.04.11 3033
116 4/8(화) 이종흔 교수 (고려대학교 신소재공학부) Administrator 2014.04.08 3975
115 4/1(화) 장호원 교수 (서울대학교 재료공학부) Administrator 2014.03.26 2935
114 3/27 (목) 남성욱 박사 (IBM T.J. Watson Research Center, Research Scientist) Administrator 2014.03.24 3575
113 3/25 (화) 황현상 교수 (포항공과대학교 신소재공학과) Administrator 2014.03.21 3145