Abstract:
본원은, 트리티오카보네이트계 사슬이동제(chain transfer agent)를 사용하여 가역적 첨가-분절 연쇄이동법(RAFT)으로 비닐계 단량체를 중합하여 비닐계 중합체를 합성하는 단계; 및 상기 합성된 비닐계 중합체를 올레핀계 중합체에 그래프팅하는 단계를 포함하는, 가역적 첨가-분절 연쇄이동 방법(RAFT)을 통한 올레핀계 분절 공중합체의 제조 방법에 관한 것으로서, 상기 간단한 2단계의 반응을 통하여 성공적으로 올레핀계 분절 공중합체를 합성할 수 있다.
Abstract:
본 발명은, 염료 감응 태양 전지의 상대 전극용 탄소나노튜브/금속 복합 페이스트 조성물, 상기 조성물을 이용하여 기판에 도포하여 열처리함으로써 형성되는 염료 감응 태양 전지용 탄소나노튜브/금속 복합 상대 전극, 및 상기 탄소나노튜브/금속 복합 상대 전극을 포함하는 염료 감응 태양 전지에 관한 것이다.
Abstract:
아지도 포르메이트의 무촉매 C-H 삽입 반응을 통해 제조된 긴 사슬 가지 달린 α-올레핀 중합체 및 그의 제조방법이 개시된다. 상세하게는 양 말단에 아지도 포르메이트(Azido formate)를 갖는 화합물을 이용함으로써 촉매를 사용하지 않고, 원치 않는 고분자 분해와 가교를 유발하지 않으며 긴 사슬 가지 달린 α-올레핀 중합체를 제조할 수 있다.
Abstract:
본 발명은 말레무수물이 그래프트된 에틸렌-프로필렌-디엔 공중합체(EPDM)를 아민기가 치환된 폴리에틸렌옥사이드(PEO) 또는 아민기가 치환된 에틸렌옥사이드-프로필렌옥사이드 공중합체와 혼합하여 에틸렌-프로필렌-디엔 공중합체에 폴리에틸렌옥사이드 또는 에틸렌옥사이드-프로필렌옥사이드 공중합체를 그래프트 반응시켜 (에틸렌-프로필렌-디엔)-그래프트-(폴리에틸렐옥사이드) 공중합체 또는 (에틸렌-프로필렌-디엔)-그래프트-(폴리(에틸렌옥사이드-co-프로필렌옥사이드)) 공중합체를 제조하는 단계를 포함하는 에틸렌-프로필렌-디엔 공중합체의 개질 방법에 관한 것으로서, 에틸렌-프로필렌-디엔(EPDM) 공중합체에 극성을 띤 폴리에틸렌옥사이드(PEO) 또는 에틸렌옥사이드-프로필렌옥사이드 공중합체 (폴리(에틸렌옥사이드-co-프로필렌옥사이드))를 그래프트시켜 에틸렌-프로필렌-공중합체를 극성으로 개질 시킬 수 있는 에틸렌-프로필렌-디엔 공중합체의 개질방법을 제공할 수 있다.
Abstract:
PURPOSE: A manufacturing method of a segmented polyolefin copolymer is provided to easily and successively synthesize segmented polyolefin copolymer through simple 2 step reaction, and to have control grafting efficiency not only the length and the quantity of graft chains. CONSTITUTION: A manufacturing method of segmented polyolefin copolymer comprises: a step of preparing an trithiocarbonate-based chain transfer agent, a step of synthesizing vinyl monomers by polymerizing vinyl monomers by reversible addition-fragmentation chain transfer by using a chain transfer agent and a radical initiator under the atmosphere of nitrogen or family 18 elements; and a step of grafting the synthesized vinyl polymer to polyolefin.
Abstract:
PURPOSE: A manufacturing method of a segmented conjugated diene copolymer is provided to easily synthesize a segmented conjugated diene copolymer having improved properties and various uses. CONSTITUTION: A manufacturing method of a segmented conjugated diene copolymer comprises: a step of synthesizing a vinyl based copolymer by polymerizing vinyl based monomers by reversible addition-fragmentation chain transfer method by using a trithiocarbonate-based chain transfer agent; and a step of grafting the vinyl based polymer to a conjugated diene based polymer. The trithiocarbonate-based chain transfer agent is a compound in chemical formula 1. The grafting step is conducted under the presence of radical generator generating reactive radical sites to the conjugated diene polymer.
Abstract:
A dye-sensitized solar cell including a composite separator and a method for fabricating the same are disclosed. The dye-sensitized solar cell including the composite separator of the present invention comprises; a light electrode which arrays an oxide layer in which a light sensitive dye is absorbed; a counter electrode which is faced with the light electrode; a first porous polymer layer of a gel type which includes an electrolyte and the composite separator between the light electrode and the counter electrode; a second porous polymer layer of a gel type; and a porous supporting layer of a solid state which is arranged between the first and second polymer layers. Therefore, the present invention improves light conversion efficiency and realizes long-term stability by improving the lifespan of an electron. The present invention improves an interface contact characteristic between a separator and a light electrode or a counter electrode and secures mechanical stability and high ion conductivity. Also, the present invention uses a traditional fabricating process of a dye-sensitized solar cell which applies a liquid electrolyte without the adoption of a separate process, thereby having an economical advantage on process.
Abstract:
PURPOSE: A counter electrode for a dye-sensitized solar cell and dye-sensitized solar cell including the same are provided to produce a catalytic substance which can is a substitute for expensive metal by using relatively low cost of graphene or a graphene oxide. CONSTITUTION: A conductive layer(120) comprises an inorganic material layer(121) and a metal layer(123). The metal layer is formed on the inorganic material layer. The metal layer includes conductive metal. The inorganic material layer includes one which is selected from graphene and a graphene oxide. A substrate is formed on the conductive layer.
Abstract:
PURPOSE: A manufacturing method of segmented ethylene-propylene-diene copolymer is provided to control grafting efficiency of a segmented ethylene-propylene-diene copolymer not only the length or quantity of graft chain. CONSTITUTION: A manufacturing method of segmented ethylene-propylene-diene copolymer comprises: a step of preparing an trithiocarbonate-based chain transfer agent; a step of synthesizing a vinyl monomers by polymerizing vinyl monomers by reversible addition-fragmentation chain transfer by using a chain transfer agent and a radical initiator under the atmosphere of nitrogen or family 18 elements; and a step of grafting the synthesized vinyl polymer to an ethylene-propylene-diene copolymer.