5,117 research outputs found
전이금속 촉매에 의한 디프로파길 말로닉산 유도체들과 기프로파길 페닐 아민의 고리화 중합
No full text학위논문(박사) - 한국과학기술원 : 화학과, 1990.2, [ ix, 87 p. ]This dissertation deals with the cyclopolymerization of dipropargyl derivatives containing functional groups such as ester, carboxylic acid and amine. In the polymerization of these dipropargyl derivatives, was more effective catalyst than , especially gave no polymer in the polymerization of dipropargyl malonic acid. n- exhibited good cocatalytic activity in the polymerization of dipropargyl malonic acid derivatives. On the other hand, was very effective cocatalyst in the polymerization of dipropargyl phenylamine by . The spectral datas and solubility behavior of the resulting cyclopolymers supported that these polymers possesses polyene structure having cyclic recurring unit in the polymer backbone. The cyclopolymers prepared in this study were mainly amorphous. The electrical conductivities of -doped polymers were in the range of Scm. The poly(diethyl dipropargylmalonate) have high molecular weight(Mn: 127100) and good film forming property.한국과학기술원 : 화학과
Synthesis and polymerization of metal salt monomers
No full text학위논문(석사) - 한국과학기술원 : 화학과, 1978.2, [ [iii], 38 p. ]분자내에 금속염을 포함한 이온결합을 형성하고 있는 Calcium 및 Magnesium 과 Copper-PHB 와 Calcium 및 Magnesium-maleate 를 각각 합성하였다. 그중 Calcium-PHB 를 Ethylene glycol과 혼합하여 MDI 와 반응시켜 고분자 주쇄에 금속을 함유하고 있는 이온성 Polyurethane 을 합성하고, 고분자 주쇄에 이온결합이 도입됨으로써 나타나는 고분자의 물리적 성질을 조사하였다. 금속의 함량증가함에 점도는 급격히 감소하였으며 용융점은 점차 감소함을 관찰할 수 있었다. 또 Calcium-maleate를 A.N과 공중합 시켜 고분자 측쇄에 금속염을 포함한 이온결합을 형성하고 있는 고분자를 합성하고, 고분자의 측쇄에 금속이 도입됨으로 나타나는 고분자의 대수점도 및 용융점의 변화를 조사하였다. 측쇄에 이온결합이 도입됨으로써 점도는 급격히 증가하였으며 용융점은 점차 낮아지는 현상을 관찰할 수 있었다. Divalent metal-PHB와 Divalent metal-Maleate를 5\% 이내로 고분자에 도입시켰을 때 고분자 자체의 기계적 성질의 변화는 별로 초래하지 않고 금속이나 이온결합으로 인한 전기전도성, 흡습성, 난연성을 지닌 고분자를 합성할 수 있을 것으로 전망된다.한국과학기술원 : 화학과
Letter from Hayao (Sam) Chuman to the American Friends Service Committee
No full textA letter from Hayao (Sam) Chuman to the American Friends Service Committee, donating a portion of his redress check from the U.S. government to the Committee.The Chuman (Hayao "Sam" and Toshiko) Papers documents the World War II experiences of Hayao "Sam" and Toshiko Chuman, who were Kibei Nisei born in the United States but grew up and completed school in Japan, and then returned to the U.S. prior to the war. It chronicles the Chuman's incarceration from the Santa Anita Assembly Center, through Jerome, Rohwer, Tule Lake camps, and the Santa Fe and Crystal City internment camps as well as their struggle for restoring their U.S. citizenships in the 1960s. The digital collection consists of mostly textual material, including correspondence, affidavits, incarceration camp records, lease agreements, financial documents, receipts, pamphlets, and booklets
Letter from Hayao (Sam) Chuman to Earl Warren and "Attorney General Clark"
No full textA letter from Hayao (Sam) Chuman to Chief Justice of the Supreme Court Earl Warren and "Attorney General Clark". The letter is a request to regain his citizenship after renouncing his U.S. citizenship and requesting repatriation to Japan during his time incarcerated in World War II.The Chuman (Hayao "Sam" and Toshiko) Papers documents the World War II experiences of Hayao "Sam" and Toshiko Chuman, who were Kibei Nisei born in the United States but grew up and completed school in Japan, and then returned to the U.S. prior to the war. It chronicles the Chuman's incarceration from the Santa Anita Assembly Center, through Jerome, Rohwer, Tule Lake camps, and the Santa Fe and Crystal City internment camps as well as their struggle for restoring their U.S. citizenships in the 1960s. The digital collection consists of mostly textual material, including correspondence, affidavits, incarceration camp records, lease agreements, financial documents, receipts, pamphlets, and booklets
Sam "Kangaroo"
No full textabstract: Sam left Sudan when he was six years old. He also witnessed many people die when they tried to cross the Gilo river.
“Lost Boys Found” is an ongoing, interdisciplinary project that is collecting, recording and archiving the oral histories of the Lost Boys/Girls of Sudan. The collection is a work-in-progress, seeking to record the oral history of as many Lost Boys/Girls as are willing, and will be used in a future book.Age: 23Region: Upper Nile (Bor)This picture and bio was donated to the "Lost Boys Found" oral history project from The Arizona Lost Boys Cente
the beat report piece detailing author Sam Pfeifle\u27s wishes for local music fo
No full textthe beat report piece detailing author Sam Pfeifle\u27s wishes for local music for 2004, mentioning radio stations WCYY and WCLZ, local band 6gig, and the Musicians Resource League
Izvori informacija u dostupnim EBSCO bazama podataka za istraživanja u visokom školstvu u Srbiji = Academic research in Serbia and available database resources
No full textUniversities in Serbia have access to large amounts of quality information through online full text databases. Specific details regarding the world’s two most comprehensive full text research data-bases, Academic Search Premier and Business Source Premier are provided. The paper examines which databases are strongest in each discipline, and covers issues such as the availability of journals most-cited, full text formats, peer-review status, embargo periods, backfills, and other important facets. Additional information depicts reasons for tremendous increase in the availability of information in the Serbia, and the value that these resources bring to researchers in universities
Letter from Kitty Barragato to Hayao (Sam) Chuman
No full textA letter from Kitty Barragato, Finance and Interpretation for the American Friends Service Committee, to Hayao (Sam) Chuman in thanks for his donation.The Chuman (Hayao "Sam" and Toshiko) Papers documents the World War II experiences of Hayao "Sam" and Toshiko Chuman, who were Kibei Nisei born in the United States but grew up and completed school in Japan, and then returned to the U.S. prior to the war. It chronicles the Chuman's incarceration from the Santa Anita Assembly Center, through Jerome, Rohwer, Tule Lake camps, and the Santa Fe and Crystal City internment camps as well as their struggle for restoring their U.S. citizenships in the 1960s. The digital collection consists of mostly textual material, including correspondence, affidavits, incarceration camp records, lease agreements, financial documents, receipts, pamphlets, and booklets
Letter from H. Scott Duncan to Hayao (Sam) Chuman
No full textA letter from H. Scott Duncan Associate Executive Secretary for Finance for the American Friends Service Committee, to Hayao (Sam) Chuman. The letter thanks Hayao for his donation.The Chuman (Hayao "Sam" and Toshiko) Papers documents the World War II experiences of Hayao "Sam" and Toshiko Chuman, who were Kibei Nisei born in the United States but grew up and completed school in Japan, and then returned to the U.S. prior to the war. It chronicles the Chuman's incarceration from the Santa Anita Assembly Center, through Jerome, Rohwer, Tule Lake camps, and the Santa Fe and Crystal City internment camps as well as their struggle for restoring their U.S. citizenships in the 1960s. The digital collection consists of mostly textual material, including correspondence, affidavits, incarceration camp records, lease agreements, financial documents, receipts, pamphlets, and booklets
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