Near-surface morphology effect on tack behavior of poly(styrene-b-butadiene-b-styrene) triblock copolymer/rosin films
SCIE
SCOPUS
- Title
- Near-surface morphology effect on tack behavior of poly(styrene-b-butadiene-b-styrene) triblock copolymer/rosin films
- Authors
- Yang, H; Sa, U; Kang, M; Ryu, HS; Ryu, CY; Cho, K
- Date Issued
- 2006-05-17
- Publisher
- ELSEVIER SCI LTD
- Abstract
- The correlation between near-surface morphology and tack behavior of poly(styrene-b-butadiene-b-styrene) triblock copolymer (SBS)/rosin ester films was investigated using probe tack tests, transmission electron microscopy and small-angle X-ray scattering. The SBS/rosin films with rosin composition between 10 and 20 wt% rosin, prepared by slow evaporation of toluene during solvent casting, exhibited uniform near-surface morphology of lamellae oriented parallel to the surface. However, due to the limited solubility of rosin in the PS domains, the rosin started to phase-separate from the PS domains at 15 wt%, and formed fully separated micron-sized domains above 20 wt% rosin. The probe tack force of the SBS/rosin films increased steadily when the near-surface domain orientation changed from perpendicular cylinder to parallel lamellae on addition of rosin. Specifically, for a given lamellar morphology and surface orientation, macrophase separation of rosin plays a critical role in determining the tack properties of SBS/rosin films. (c) 2006 Elsevier Ltd. All rights reserved.
- Keywords
- tack; surface morphology; block copolymer; PRESSURE-SENSITIVE ADHESIVES; RUBBER-RESIN BLENDS; BLOCK-COPOLYMERS; DIBLOCK COPOLYMERS; TACKIFYING RESIN; VISCOELASTICITY; MIXTURES; MELT
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23976
- DOI
- 10.1016/j.polymer.2006.02.081
- ISSN
- 0032-3861
- Article Type
- Article
- Citation
- POLYMER, vol. 47, no. 11, page. 3889 - 3895, 2006-05-17
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- There are no files associated with this item.
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