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公开(公告)号：KR1019980053383A
公开(公告)日：1998-09-25
申请号：KR1019960072482
申请日：1996-12-26
Applicant: 한국과학기술원
IPC: A61K31/765 , A61K31/745
Abstract: 본 발명은 상호 침투하는 다성분계 고분자의 혈액 적합성을 향상시키는 방법에 관한 것이다. 좀 더 구체적으로, 본 발명은 친수성 우레탄 수지와 소수성 스티렌 유도체를 각각 가교중합시킨 망상구조의 상호 침투 고분자(interpenetrating polymer network : IPN) 합성시, 상분리에 영향을 미치는 인자 즉, 두 성분의 조성비, 합성온도, 합성압력, 가교밀도, 폴리우레탄의 친수성 정도를 조절하여, 합성된 IPN의 혈액 적합성을 향상시키는 방법에 관한 것이다. 본 발명의 방법으로 합성된 IPN 소재는 우수한 기계적 물성을 나타내고, 혈액 접촉시 혈소판의 점착과 응집을 억제하여 혈전생성을 억제하므로, 혈액과 접촉하는 인공 장기 및 표면 처리 물질 등으로 광범위하게 응용될 수 있다.
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公开(公告)号：KR100853713B1
公开(公告)日：2008-08-25
申请号：KR1020070031157
申请日：2007-03-29
Applicant: 한국과학기술원
CPC classification number: C08F283/00 , C08J5/2275 , C08J2381/06 , H01M8/1027 , H01M8/1032 , H01M8/1053 , H01M8/1067 , H01M8/1072 , H01M2300/0082 , Y02P70/56
Abstract: A polymer composite membrane for a fuel cell is provided to solve the problem of methanol crossover, and to realize selectivity of a polymer electrolyte membrane. A polymer composite membrane for a fuel cell comprises a mixture of a polysulfone polymer having a high sulfonation degree for increasing proton conductivity and a non-sulfonated polysulfone polymer for reducing methanol crossover. The polymer composite membrane has an interconnected phase structure by inhibiting phase separation during the initial stage of spinodal phase separation through the control of the drying condition and the concentration of the mixed polymer solution.
Abstract translation: 提供一种用于燃料电池的聚合物复合膜，以解决甲醇交叉的问题，并实现高分子电解质膜的选择性。 用于燃料电池的聚合物复合膜包括用于提高质子传导性的具有高磺化度的聚砜聚合物和用于还原甲醇交叉的非磺化聚砜聚合物的混合物。 聚合物复合膜通过控制干燥条件和混合聚合物溶液的浓度，在旋转相分离的初始阶段通过抑制相分离具有互相相结构。
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公开(公告)号：KR100542264B1
公开(公告)日：2006-01-11
申请号：KR1020040037874
申请日：2004-05-27
Applicant: 한국과학기술원
Abstract: 본 발명은 유기화 점토 제조용 유기화제의 제조방법에 있어서,
(a) 적어도 말단에 하나 이상의 하이드록실기 또는 아민기를 가지는 3차아민 화합물과 디이소시아네이트를 반응시키는 단계; (b) 단계 a에서 얻어진 이소시아네이트를 말단에 가지는 화합물과 폴리올을 반응시키는 단계를 포함함을 특징으로 하는 유기화제의 제조방법을 제공한다.
유기화제, 점토, 나노복합재료-
公开(公告)号：KR100515035B1
公开(公告)日：2005-09-15
申请号：KR1020010086058
申请日：2001-12-27
IPC: C08G63/08
Abstract: 본 발명은 생분해성을 가지면서 수용액상에서 온도에 따라 졸/겔 전이를 보이는 열감응성 스타형 블록공중합체에 관한 것으로, 비결정성 폴리에스테르로 구성되는 소수성 블록과, 폴리(에틸렌옥시드)로 구성되는 친수성 블록을 포함하는 생분해성 스타형 블록공중합체를 개시한다. 본 발명에 의하면 생분해성을 가지면서 수용액상에서 온도에 따라 졸/겔 전이를 보이며, 선형 블록공중합체와 비교하여 볼 때 보다 낮은 농도에서도 겔을 형성할 수 있으며, 미셀의 형성에도 유리하여 약물전달 시스템에 매우 유용한 열감응성 스타형 블록공중합체를 제공한다.
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公开(公告)号：KR100483851B1
公开(公告)日：2005-04-18
申请号：KR1020020042905
申请日：2002-07-22
IPC: B82B3/00 , B82Y40/00 , C08F292/00 , C08F2/24
CPC classification number: C08J5/005 , B82Y30/00 , C08F2/22 , C08F2/44 , C08F20/54 , C08F220/18 , C08F220/28 , C08J2333/20
Abstract: 본 발명은 유화중합법에 의해 니트로계 고분자/실리케이트 나노복합체를 제조함에 있어서, 라디칼 중합이 가능한 비닐기 및 실리케이트와 친화력을 가지는 작용기 양자를 보유한 반응형 유화제의 존재하에 비변성 층상 실리케이트 및 상기 고분자를 구성하는 단량체를 사용하여 유화중합을 수행하는 것을 특징으로 하는 박리형 니트로계 고분자/실리케이트 나노복합체의 제조방법에 관한 것으로, 상기 중합과정 중에 실리케이트가 충분히 박리되어 고분자 전체에 균일하게 분산되므로 소량의 실리케이트만으로도 목적 고분자의 열적 및 기계적 물성을 크게 개선할 수 있으며, 유기치환된 실리케이트를 사용할 필요가 없기 때문에 생산공정 및 경제적 측면에서 유리하다.
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Patent Agency Ranking
公开(公告)号：KR100464846B1
公开(公告)日：2005-01-05
申请号：KR1020010079360
申请日：2001-12-14
Applicant: 한국과학기술원 , 롯데케미칼 주식회사 , 제일모직주식회사
IPC: C08F20/56
Abstract: PURPOSE: Provided is a novel oil-absorbing crosslinked polymer, which can gelate aliphatic or aromatic organic solvents and oil like crude oil by absorbing the organic solvents and oil from water selectively and swelling. CONSTITUTION: The novel oil-absorbing crosslinked polymer is produced by a process comprising the steps of: dissolving a lipophilic radical initiator and a crosslinking agent in a monomer solution produced from a crystalline acrylamide monomer(formula I) having a long chain hydrocarbon on the side chain thereof or a monomer mixture solution produced from a monomer selected from vinyl monomers such as a styrene monomer or an acrylate monomer having an alkyl or cyclic substituent and an acrylamide monomer; stirring and dispersing the solution in water containing a surfactant having a HLB(hydrophilic-lipophilic balance) value of 8-18; heating the produced emulsion or suspension for a fixed time and polymerizing. In the formula, R is -(CH2)n-CH3, R' is -(CH2)m-CH3, n is 1-17, and m is 1-10.
Abstract translation: 用途：提供一种新型吸油交联聚合物，通过选择性地吸收水中的有机溶剂和油，使脂肪族或芳香族有机溶剂和原油等原油发生凝胶化并膨胀。 本发明的新型吸油交联聚合物是通过包括以下步骤的方法制备的：将亲脂性自由基引发剂和交联剂溶解在由结晶丙烯酰胺单体（式I）制备的单体溶液中，所述单体溶液在侧面具有长链烃 链或由选自乙烯基单体例如苯乙烯单体或具有烷基或环状取代基的丙烯酸酯单体和丙烯酰胺单体的单体制备的单体混合物溶液; 将该溶液搅拌并分散在含有HLB（亲水亲油平衡）值为8-18的表面活性剂的水中; 将生产的乳液或悬浮液加热一段固定时间并聚合。 在该式中，R是 - （CH 2）n -CH 3，R'是 - （CH 2）m -CH 3，n是1-17，并且m是1-10。
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公开(公告)号：KR100443719B1
公开(公告)日：2004-08-09
申请号：KR1020010082548
申请日：2001-12-21
IPC: C07D209/56
Abstract: PURPOSE: Provided are novel tricyclic norbornene derivatives of the formula(1) which produce, in polymerization, amorphous cyclic olefin polymers with enhanced thermal, chemical stability and adhesiveness as well as excellent optical properties such as transparency. CONSTITUTION: A preparation method of novel tricyclic norbornene derivatives comprises: making1,2,3,6-tetrahydrophthalic acid imide by reacting 1,2,3,6-tetrahydrophthalic acid anhydride with alkylamine with C3-C24 or cycloalkylamine; reacting the 1,2,3,6-tetrahydrophthalic acid imide with cyclopentadiene in Diels-Alder reaction. In the formula(1), R is cyclohexyl or n-hexyl group.
Abstract translation: 目的：提供新型式（1）的三环降冰片烯衍生物，它们在聚合反应中生成具有增强的热，化学稳定性和粘合性以及优异的光学性能如透明性的无定形环状烯烃聚合物。 构成：新型三环降冰片烯衍生物的制备方法包括：通过使1,2,3,6-四氢邻苯二甲酸酐与烷基胺与C3-C24或环烷基胺反应制备1,2,3,6-四氢邻苯二甲酰亚胺; 在Diels-Alder反应中使1,2,3,6-四氢邻苯二甲酰亚胺与环戊二烯反应。 在式（1）中，R是环己基或正己基。
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公开(公告)号：KR1020040009075A
公开(公告)日：2004-01-31
申请号：KR1020020042905
申请日：2002-07-22
IPC: B82B3/00 , B82Y40/00 , C08F292/00 , C08F2/24
CPC classification number: C08J5/005 , B82Y30/00 , C08F2/22 , C08F2/44 , C08F20/54 , C08F220/18 , C08F220/28 , C08J2333/20
Abstract: PURPOSE: Provided is a method for making an exfoliated nitro-polymer/silicate nanocomposite having a light weight and excellent thermal and mechanical properties by a simple process in a large amount. CONSTITUTION: The method for making an exfoliated nitro-polymer/silicate nanocomposite by an emulsion polymerization comprises the steps of: carrying out the emulsion polymerization of a monomer from which the nitro-polymer is formed and a non-modified layered silicate, in the presence of a reactive emulsifier having both a radically polymerizable vinyl group and a functional group having the affinity to the silicate. Preferably, the monomer is acrylonitrile.
Abstract translation: 目的：提供通过大量简单的方法制造具有重量轻和优异的热和机械性能的剥离的硝基聚合物/硅酸盐纳米复合材料的方法。 构成：通过乳液聚合制造剥离的硝基聚合物/硅酸盐纳米复合材料的方法包括以下步骤：在存在下进行硝基聚合物形成的单体和非改性层状硅酸盐的乳液聚合 的具有可自由基聚合的乙烯基和对硅酸盐具有亲和性的官能团的反应性乳化剂。 优选地，单体是丙烯腈。
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公开(公告)号：KR1020030055927A
公开(公告)日：2003-07-04
申请号：KR1020010086058
申请日：2001-12-27
IPC: C08G63/08
Abstract: PURPOSE: A biodegradable thermal-sensitive star-shaped block copolymer and a drug delivery system for injection containing the copolymer are provided, wherein the copolymer shows the sol/gel phase transition in an aqueous solution according to temperature and can form gel at a lower temperature compared with a linear block copolymer. CONSTITUTION: The star-shaped block copolymer comprises a hydrophobic block comprising a noncrystalline polyester and a hydrophilic block comprising poly(ethylene oxide). Preferably the hydrophobic block is at least one selected from the group consisting of noncrystalline poly(d,l-lactide), poly(d,l-lactide-co-glycolide), poly(d,l-lactide-co-ε-caprolactone), ply(l-lactide-co-glycolide), poly(l-lactide-co-ε-caprolactone), poly(ε -caprolactone-co-glycolide), poly(ε-caprolactone-co-glycolide-co-d,l-lactide) and poly(ε -caprolactone-co-glycolide-co-l-lactide). Preferably the hydrophobic block has an average molecular weight of 500-25,000 and the hydrophilic block has an average molecular weight of about 500-25,000.
Abstract translation: 目的：提供一种可生物降解的热敏星形嵌段共聚物和含有共聚物的注射药物递送系统，其中共聚物根据温度在水溶液中显示溶胶/凝胶相变，并可在较低温度下形成凝胶 与线性嵌段共聚物相比。 构成：星形嵌段共聚物包括含非结晶聚酯的疏水嵌段和包含聚（环氧乙烷）的亲水嵌段。 优选地，疏水嵌段是选自非结晶聚（d，l-丙交酯），聚（d，l-丙交酯 - 共 - 乙交酯），聚（d，l-丙交酯 - 共-ε-己内酯） ），聚（1-丙交酯 - 共 - 乙交酯），聚（1-丙交酯 - 共-ε-己内酯），聚（ε-己内酯 - 共 - 乙交酯），聚（ε-己内酯 - 共 - 乙交酯共 - ，丙交酯）和聚（ε-己内酯 - 共 - 乙交酯 - 共-1-丙交酯）。 优选地，疏水嵌段的平均分子量为500-25,000，亲水嵌段的平均分子量为约500-25,000。
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公开(公告)号：KR1020030049208A
公开(公告)日：2003-06-25
申请号：KR1020010079360
申请日：2001-12-14
Applicant: 한국과학기술원 , 롯데케미칼 주식회사 , 제일모직주식회사
IPC: C08F20/56
CPC classification number: C08F220/56 , C08F2/44 , C08F212/08 , C08F212/12 , C08F218/08 , C08F220/44 , C08F2220/1883 , C08F2220/1891 , C08F2220/285 , C08J3/242
Abstract: PURPOSE: Provided is a novel oil-absorbing crosslinked polymer, which can gelate aliphatic or aromatic organic solvents and oil like crude oil by absorbing the organic solvents and oil from water selectively and swelling. CONSTITUTION: The novel oil-absorbing crosslinked polymer is produced by a process comprising the steps of: dissolving a lipophilic radical initiator and a crosslinking agent in a monomer solution produced from a crystalline acrylamide monomer(formula I) having a long chain hydrocarbon on the side chain thereof or a monomer mixture solution produced from a monomer selected from vinyl monomers such as a styrene monomer or an acrylate monomer having an alkyl or cyclic substituent and an acrylamide monomer; stirring and dispersing the solution in water containing a surfactant having a HLB(hydrophilic-lipophilic balance) value of 8-18; heating the produced emulsion or suspension for a fixed time and polymerizing. In the formula, R is -(CH2)n-CH3, R' is -(CH2)m-CH3, n is 1-17, and m is 1-10.
Abstract translation: 目的：提供一种新型吸油性交联聚合物，可通过选择性吸收有机溶剂和水从而使脂肪族或芳族有机溶剂和油类原油成为凝胶状，并溶胀。 构成：新型吸油交联聚合物通过包括以下步骤的方法制备：将亲脂性自由基引发剂和交联剂溶解在由侧链上具有长链烃的结晶丙烯酰胺单体（式I）制备的单体溶液中 链或由选自乙烯基单体如苯乙烯单体或具有烷基或环状取代基的丙烯酸酯单体和丙烯酰胺单体的单体制备的单体混合物溶液; 将溶液搅拌并分散在含有HLB（亲水 - 亲油平衡）值为8-18的表面活性剂的水中; 加热生产的乳液或悬浮液一段固定的时间并聚合。 在该式中，R为 - （CH 2）n -CH 3，R'为 - （CH 2）m -CH 3，n为1-17，m为1-10。
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