http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Manthiriyappan Sureshkumar (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
Conductive Nanocomposites Based on Polystyrene Microspheres and Silver Nanowires by Latex Blending
Sureshkumar, Manthiriyappan,Na, Hyo Yeol,Ahn, Kyung Hyun,Lee, Seong Jae American Chemical Society 2015 ACS APPLIED MATERIALS & INTERFACES Vol.7 No.1
<P>Metallic nanowires with excellent electrical conductivity and high aspect ratio are critical in the preparation of conductive polymer nanocomposites. In this work, highly conductive polystyrene/silver nanowire (PS/AgNW) nanocomposites were prepared by latex blending, and their electrical and rheological properties were investigated. A high yield of long and thin AgNWs was synthesized with the polyol method. AgNWs were incorporated with highly monodisperse PS microspheres to produce polymer nanocomposites with a nanowire network structure providing electrical pathways. An electrically conductive network of AgNWs was obtained at an electrical percolation threshold of 0.49 vol % AgNW, and an electrical conductivity of 10<SUP>2</SUP> S/m was obtained at 1 vol %. The dynamic rheological properties evaluated at 1 vol % also confirmed that the AgNWs were physically connected to one another at this concentration.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2015/aamick.2015.7.issue-1/am5071392/production/images/medium/am-2014-071392_0011.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am5071392'>ACS Electronic Supporting Info</A></P>
-
Preparation of Metal Nanocomposite Aerogels
수레쉬쿠마 水原大學校 2016 論文集 Vol.30 No.-
Due to high porosity and readily accessible inter-connected open pore system aerogel based materials gained a special interest in various fields. Nanomaterial incorporated aerogels are potential candidates for catalysis, thermal insulation, filter materials, energy absorbers, heat and sound insulation applications. In this work, light weight silver nanomaterial incorporated bacterial cellulose (BC) aerogel is prepared without the addition of any reducing agent. BC acts as a nanoreactor and reducing agent for metallic nanoparticle synthesis.
-
Biopolymer based Antioxidant Material
수레쉬쿠마 水原大學校 2017 論文集 Vol.31 No.-
There is considerable attention in generating suitable platform to create a novel antioxidant material based on polymer. Particularly, chitosan and its derivatives can be formed into fibers, films, gels, sponges and nanoparticles gained interest as attractive biopolymers. Biocompatible, biodegradable, low toxic and polycationic polysaccharide chitosan is composed of glucosamine and N-acetyl-glucosamine linked by β(1,4) glycosidic bond, which can be derived from second most abundant polymer, chitin. Natural polyphenols are known to have strong antioxidant properties. Dopamine, a catecholamine neurotransmitter present in a wide variety of animals, can be easily auto-oxidized to form self-polymerized polydopamine (Pdop) which has similar antioxidation properties as polyphenols. A novel chitin-based antioxidant with Pdop, is proposed in this work.
-
수레쉬쿠마 水原大學校 2019 論文集 Vol.33 No.-
One of most abundant biopolymer, chitin based magnetic nanomaterials are prepared. Magnetic chitin (MCT) particles treated with dopamine followed by reaction with glutaraldehyde, can be used as solid, recoverable, cheaper and robust matrix system for enzyme immobilization.
-
Magnetic Nanocomposite as a Mimetic Peroxidase and its Application for Glucose Assay
수레쉬쿠마 水原大學校 2014 論文集 Vol.28 No.-
This work focuses on mimic peroxidase activity of magnetic nanocomposites. Polydopamine coating methodology is introduced to create multifunctionality surface of MBC act not only acted as mimic peroxidase, but also used as enzyme immobilization matrix. Glucose oxidase (GOX) was successfully immobilized and H2O2 generated by the GOX reaction was effective removed by the mimic peroxidase activity of the nanocomposite.
-
전기 전도성 폴리스티렌/은 나노와이어 나노복합재료의 제조 및 물성
나효열(Hyo Yeol Na),Manthiriyappan Sureshkumar,이성재(Seong Jae Lee) 한국고분자학회 2015 폴리머 Vol.39 No.4
은 나노와이어(AgNW)는 높은 형상비와 순도를 지닌 전기 전도성이 매우 우수한 나노필러이다. 본 연구에서는 폴리스티렌(PS)과 AgNW로 구성된 나노복합재료를 응고침전법으로 제조한 후 나노복합재료의 유변물성 및 전기적 물성에 대해 고찰하였다. PS/AgNW 나노복합재료의 제조에 사용한 AgNW는 폴리올 방법으로 합성하였는데 합성한 AgNW의 평균 크기는 직경 110 nm와 길이 35 μm이었다. PS/AgNW 나노복합재료의 유변물성은 복소 점도 및 저장 탄성률로 해석하였다. 미세구조의 뚜렷한 변화를 보여주기 시작하는 유변학적 임계농도는 AgNW 0.50 vol%로 나타났다. 이러한 미세구조의 변화는 AgNW와 PS 사슬, AgNW간의 네트워크 형성에 따른 결과로 추론된다. 전기 전도도로 평가한 전기적 물성은 AgNW 첨가에 따라 AgNW간의 네트워크 구조가 형성되면서 급격히 증가하였다. 전기적 임계농도는 AgNW 0.54 vol%에서 나타났으며, 2 vol%에서의 전기 전도도는 약 10<SUP>3</SUP> S/m이었다. Silver nanowire (AgNW) is an excellent electrically conductive nanofiller having high purity and high aspect ratio. In this study, we prepared the nanocomposites composed of polystyrene (PS) and AgNWs by coagulated precipitation and investigated their rheological and electrical properties. AgNWs used in the nanocomposites were synthesized by polyol method, where the average size of the AgNWs was 110 nm in diameter and 35 μm in length. Rheological properties of the PS/AgNW nanocomposites were analyzed with complex viscosity and storage modulus. The rheological percolation threshold showing distinct change in microstructure was AgNW 0.50 vol%. This microstructural change can be attributed to the network formation between AgNW-PS chain and between AgNW-AgNW. The electrical conductivity was abruptly increased by forming network structure between AgNW-AgNW with increasing AgNWs. Electrical percolation threshold was 0.54 vol%, and the conductivity was as high as 10<SUP>3</SUP> S/m at 2 vol%.
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
