Effect of acrylic acid content in poly(ethylene-ran-acrylic acid) on the morphology and mechanical properties of poly(ethylene-ran-acrylic acid)/polystyrene blends compatibilized by poly(styrene-ran-glycidyl methacrylate)
SCIE
SCOPUS
- Title
- Effect of acrylic acid content in poly(ethylene-ran-acrylic acid) on the morphology and mechanical properties of poly(ethylene-ran-acrylic acid)/polystyrene blends compatibilized by poly(styrene-ran-glycidyl methacrylate)
- Authors
- Kim, S; Kim, JK; Park, CE
- Date Issued
- 1997-04
- Publisher
- ELSEVIER SCI LTD
- Abstract
- Three poly(ethylene-ran-acrylic acid)s (PE-AAs) with different amounts of acrylic acid but exhibiting similar rheological properties were studied to investigate the effect of acrylic acid content in PE-AAs on the morphology and mechanical properties of PE-AA/polystyrene (PS) blend compatibilized by poly(styrene-ran-glycidyl methacrylate) (PS-GMA). From morphological observations, there appears to be an optimum amount of acrylic acid in PE-AA that effectively reduces the dispersed domain size in PE-AA/PS blend systems. The existence of an optimum value is due to the combined effects of a sufficient reaction near the interface giving enough amounts of graft copolymers as a compatibilizer between PE-AA and PS, and fast diffusion of reactive species toward;he interface. However, the tensile strength (sigma(b)) and the elongation at break (epsilon(b)) for these blend systems steadily increased with an increase in the amount of acrylic acid in PE-AA. By increasing the amount of PS-GMA, sigma(b) and epsilon(b) for all blend systems increased rapidly, and then levelled off. Impact strength of these blend systems was investigated by varying them amount of acrylic acid in PE-AA. (C) 1997 Elsevier Science Ltd.
- Keywords
- reactive compatibilization; functional group content; poly(ethylene-ran-acrylic acid); TOUGHENED ALIPHATIC POLYAMIDES; POLYMER BLENDS; REACTIVE COMPATIBILIZATION; BLOCK COPOLYMERS; POLYSTYRENE; BEHAVIOR; PHASE; ANHYDRIDE; INTERFACE; NYLON-6,6
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21333
- DOI
- 10.1016/S0032-3861(96)00775-6
- ISSN
- 0032-3861
- Article Type
- Article
- Citation
- POLYMER, vol. 38, no. 9, page. 2113 - 2119, 1997-04
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