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이산화탄소로부터 Poly ( alkylene carbonate ) 의 합성
이윤배,최정현 ( Yoon Bae Lee,Jeong Hyun Choi ) 한국공업화학회 1996 공업화학 Vol.7 No.5
In order to reduce carbon dioxide, one of the major greenhouse gases, a new type of copolymer, poly (alkylene carbonate) has been synthesized. The alternating copolymers have been obtained from carbon dioxide and various epoxides with zinc carboxylate as a catalyst. The number-average molecular weight of the polymer is about 50,000 and polydispersity is rather broad(5-10). The polymers are amorphous, and glass-clear materials that exhibit unusually facile and clean thermal decomposition behavior. Complete decomposition with no carbon residue is observed at elevated temperature even in an inert atmosphere. Terpolymers with bulkier epoxides improve the physical properties of the copolymer with simple epoxides. The decomposition properties of the polymer provide versatile applications such as ceramic, metal, and electronic binders and lost-foam casting. Further application of the polymer for the barrier film or the plasticizer will be investigated.
이윤배,최정현,원상영 순천향대학교 부설 산업기술연구소 1997 순천향 산업기술연구소논문집 Vol.3 No.1
The plasticizer effect of poly(propylene carbonate) (PPC) on glass transition temperatures of po1y(vinyl chloride) (PVC) has been investigated and compared with dioctyl phthalate (DOP), a common plasticizer of PVC. The decrease in glass transition temperatures of the PPC blended PVC was not significant when compared with that of DOP. For the theoretical calculation of solubility parameters group molar attraction constants have been employed. The PPC performance was within an acceptable range for some type of application.