Abstract
This study examines the interfacial adhesion between poly(styrene) (PS) and poly(styrene-co-acrylonitrile) (SAN) interfaces reinforced with poly(styrene-co-vinyl phenol) (PS-ran-PSPh) random copolymers using an asymmetric double-cantilever beam (ADCB) test. The effects of oligomer and copolymer composition on interfacial adhesion were investigated. The results showed that the interfacial adhesion of the PS/SAN interface was increased significantly after removing the residual oligomer from the SAN. The interfacial adhesion was also measured for five-purified SAN materials in the range 17-31 wt%. The highest level of PS/SAN adhesion was observed for 17% AN (acrylonitrile) materials. In addition, the interfacial adhesion of a mixture of diblock and random copolymer was measured in order to investigate which is the most effective method. The results showed that mixture systems are more cost-effective with higher adhesion, which is independent of temperature. Atomic force microscopy showed that a single craze ahead of the crack is a possible failure mode during PS/SAN interface fracture.
| Original language | English |
|---|---|
| Pages (from-to) | 287-293 |
| Number of pages | 7 |
| Journal | Polymer International |
| Volume | 53 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2004 |
Keywords
- Block copolymer
- Immiscible polymer joints
- Interfacial adhesion
- Interfacial layer
- Oligomer
- Random copolymer
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