고분자량의 poly(1,4-butylene carbonate-co-terephthalate) 합성과 열적 성질

DC Field Value Language
dc.contributor.advisor이분열-
dc.contributor.author이정재-
dc.date.accessioned2018-11-08T08:15:40Z-
dc.date.available2018-11-08T08:15:40Z-
dc.date.issued2014-02-
dc.identifier.other16089-
dc.identifier.urihttps://dspace.ajou.ac.kr/handle/2018.oak/11976-
dc.description학위논문(석사)--아주대학교 일반대학원 :분자과학기술학과,2014. 2-
dc.language.isoeng-
dc.publisherThe Graduate School, Ajou University-
dc.rights아주대학교 논문은 저작권에 의해 보호받습니다.-
dc.title고분자량의 poly(1,4-butylene carbonate-co-terephthalate) 합성과 열적 성질-
dc.title.alternativeLee Jung Jae-
dc.typeThesis-
dc.contributor.affiliation아주대학교 일반대학원-
dc.contributor.alternativeNameLee Jung Jae-
dc.contributor.department일반대학원 분자과학기술학과-
dc.date.awarded2014. 2-
dc.description.degreeMaster-
dc.identifier.localId608747-
dc.identifier.urlhttp://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000016089-
dc.subject.keywordbiodegradable polymer-
dc.subject.keywordcomspostable polymer-
dc.subject.keywordPBCT-
dc.subject.keywordPBAT-
dc.subject.keyword생분해성 고분자-
dc.subject.keywordpolyester-
dc.subject.keywordpolycarbonate-
dc.subject.keyword폴리에스터-
dc.subject.keyword폴리카보네이트-
dc.description.alternativeAbstractCondensation copolymerizations of 1,4-butanediol (BD), dimethyl carbonate (DMC), and dimethyl terephthalate (DMT) were conducted by a two-step procedure using sodium alkoxide (0.1–0.2 mol%) as a catalyst with a variable [DMT]/[BD] feed ratio. In the first step, oligomers bearing almost equal numbers of hydroxyl and methoxycarbonyl end-groups were generated, which were polycondensed mostly by the elimination of methanol at 190¬–210 °C under reduced pressure. By this procedure, high-molecular-weight poly(1,4-butylene carbonate-co-terephthalate)s (PBCTs) were easily prepared with Mw 60000¬–200000 in a reasonably short reaction time (~8.5 h) and even on large scale (110 g polymer/batch) in a 250 mL glass reactor. The PBCTs prepared at a high [DMT]/[BD] feed ratio 0.30¬–0.50 were semi-crystalline polymers with fast crystallization rates and melting temperatures in the range 95−146 °C, which were adjustable by the [DMT]/[BD] feed ratio. The glass transition temperatures were rather high around 0 °C. These thermal properties were comparable to those of commercialized compostable polyesters such as PLA, PHA, PBAT, and PBSA.-
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Graduate School of Ajou University > Department of Molecular Science and Technology > 3. Theses(Master)
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