Abstract:
The present application relates to a method for preparing olefin-based segmented copolymers through reversible addition-fragmentation chain transfer (RAFT), wherein the method comprises: a step of polymerizing vinyl-based monomers through reversible addition-fragmentation chain transfer (RAFT) using a trithiocarbonate-based chain transfer agent to synthesize vinyl-based polymers; and a step of grafting the synthesized vinyl-based polymers to olefin-based polymers. The method of the present invention successfully synthesizes olefin-based segmented copolymers through the two simple above-described steps.
Abstract:
본 발명은, 분절 공중합체를 포함하는 분산제를 사용하여 분산 조절된 탄소나노튜브 페이스트 조성물을 기판에 도포하여 열처리함으로써 형성되는 분산 조절된 탄소나노튜브 전극, 및, 상기 분산 조절된 탄소나노튜브 전극으로 형성되는, 염료감응 감응 태양 전지용 상대 전극에 관한 것이다. 분절 공중합체, 탄소나노튜브, 페이스트, 분산제, 태양전지, 상대전극
Abstract:
PURPOSE: A carbon nanotube/metal composite paste composition for a counter electrode of a dye-sensitized solar cell, and a carbon nanotube / metal complex counter electrode using thereof are provided to secure the high oxidation-reduction catalyst speed. CONSTITUTION: A carbon nanotube/metal composite paste composition for a counter electrode of a dye-sensitized solar cell contains 100 parts of solvent by weight, 0.1~100 parts of carbon nanotube by weight, and 0.1~100 parts of metal precursor or metal by weight for 100 parts of carbon nanotube by weight. A carbon nanotube / metal complex counter electrode includes an optical electrode with a photo-sensitized dye layer, a counter electrode formed by spreading the composition to a substrate, and an electrolyte.
Abstract:
PURPOSE: An amphiphilic block copolymer, and a solid polymer electrolyte and a dye-sensitized solar cell comprising the same are provided to improve effective delivery of electrons and ion conductivity due to a structure corresponding to a brush and supporter. CONSTITUTION: An amphiphilic block copolymer comprises a first block consisting of a unit (a) containing a polyalkylene oxide side chain and a unit (b) of aromatic hydrocarbon; and a second block consisting of a repeating unit of aromatic hydrocarbon. The unit (a) has a structure where the polyalkylene oxides side chain is bonded with maleic anhydride.
Abstract:
PURPOSE: A segmented copolymer and a carbon nano tube containing the same are provided to avoid defects in a carbon nanotube structure through an aromatic hydrocarbon group when applied to the carbon nanotube, and to improve dispersibility of the carbon nanotube. CONSTITUTION: A segmented copolymer comprises a first polymer segment consisting of a structure unit based on a maleic anhydride-vinyl group and a second polymer segment consisting of a structure unit based on a vinyl group. The segmented copolymer is represented by chemical formula 1, wherein R1 is and alkyl group substituted with a polycyclic aromatic hydrocarbon group; R2 and R3 are independently substituted or unsubstituted aromatic hydrocarbon group; m is 1-50, n is 0-50, p is 1-500, and q is 10-750.
Abstract:
Disclosed is a polyamide thermoplastic elastomer composition. According to the present invention, a polyamide thermoplastic elastomer composition includes 5-95 wt% of a polyolefin elastomer and 5-95 wt% of polyamide and is cross-linked by electron beam irradiation, or the like. The polyamide thermoplastic elastomer composition can have an excellent mechanical property and a heat-resisting property due to electron beam irradiation and thus can be used as a raw material in various engineering fields, such as automobile and aviation, and so on. Also, since the composition is reformable, has an excellent elastic restoring force and does not require a large number of reinforcing materials during forming, the composition is eco-friendly and is capable of saving energy upon manufacturing.
Abstract:
PURPOSE: A laminate for an electronic device is provided to offer conductivity and stable electrochemical property, to apply a relatively cheap plate shape carbon-based material for reducing the manufacturing process, and to improve the energy conversion efficiency of the electronic device. CONSTITUTION: A laminate (10) includes the following: a substrate (12); a first thin film (14) including a plate shape carbon-based material, and being located on one side of the substrate; and a second thin film (16) containing a fibrous carbon-based material, being located in between the substrate and the first thin film or the opposite side of the surface on the first thin film facing the substrate. A manufacturing method of the laminate comprises the following steps: forming a precursor thin film of the plate shape carbon-based material; forming the first thin film by decomposing the precursor thin film with heat; locating the first thin film on the substrate; and coating the fibrous carbon-based material on the first thin film to form the second thin film.
Abstract:
PURPOSE: A block copolymer is provided to be manufactured through a relatively simple synthetic process, and to provide a polymer electrolyte capable of simultaneously ensuring mechanical stability and high ion conductivity. CONSTITUTION: A block copolymer(A-B) comprises: a first block(A) which comprises a polyalkylene oxide-grafted vinyl polymer, and a vinyl aromatic hydrocarbon polymer substituted by a hydroxy group; a second block(B) which is a vinyl aromatic hydrocarbon polymer substituted by hydroxy group. The vinyl polymer is substituted by one or more functional group selected from an imide group and amide group, and a carboxy group. The electrolyte composition comprises the block copolymer. A semi-solid electrolyte is formed by hardening an electrolyte composition comprising the block copolymer through an UV-irradiation.
Abstract:
PURPOSE: A dispersion-controlled carbon nano-tube electrode and a counter electrode for a dye-sensitized solar cell using the same are provided to improve the dispersing property of the carbon nano-tube by wrapping the carbon nano tube. CONSTITUTION: A conductive transparent electrode(102) is formed on the upper transparent substrate(101). An oxide semiconductor layer(103) is formed on the conductive transparent electrode. Photosensitive dye is absorbed to the surface of the oxide semiconductor layer. A thin or thick counter electrode(105) is formed on the lower substrate(106). Electrolyte(104) is filled in the counter electrode.