| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Effect of Side Chain Length of Succinic Anhydride on Physical Properties of Epoxy Resins |
| 초록 | It is well known that the epoxy resins are converted to a three-dimensional molecular network structure through a cure reaction. And the bulk properties, such as toughness, chemical resistance, mechanical properties, adhesive strength, heat resistance, and electrical resistance, of final epoxy product are determined by cross-linked network structures. The network structure of epoxy resins depends on the chemical structure of the curing agents and the curing conditions.1,2 In this study, the effect of alkenyl side chain of succinic anhydride (SA) on the thermal behaviors and coefficient of thermal expansion of diglycidylether of bisphenol A (DGEBA) epoxy resins was studied. The side chain length of SA was varied from 6 to 14 and N, N-dimethylbenzylamine was used as an accelerator. As a result, the reactivity of the SA with epoxide group was decreased with increasing the alkenyl side chain of SA. The thermal stabilities of the cured DGEBA/SA samples were approximately constant with varying the alkenyl side chain of SA. Fig. 1 shows the thermal mechanical properties of DGEBA/SA systems as a function of alkenyl side chain. The coefficient of thermal expansion (CTE) of the systems was increased as the alkenyl side chain of SA increased. This could be attributed to the increased motion of the chain segments in the epoxy network structure induced by the longer alkenyl side chain of SA. Also, the effect of anhydride amount, thermoplastics, and fillers on the CTE of epoxy resins was discussed. Fig. 1. Thermal mechanical properties of DGEBA/SA systems as a function of alkenyl side chain. References 1. C. A. May, Epoxy Resin. Chemistry and Technology, Marcel Dekker Inc., New York and Basel, 1988, pp. 1. 2. S. J. Park, G. Y. Heo, and D. H. Suh, J. Polym. Sci. Polym. Chem., 41, 2393 (2003). |
| 저자 | 김범용, 이재락, 박수진 |
| 소속 | 한국화학(연) |
| 키워드 | Succinic anhydride; Physical properties; Epoxy resins |
