TY - JOUR
T1 - Miscibility behavior of poly(n-butyl methacrylate) latex films containing alkali-soluble resin
AU - Choi, Hee Young
AU - Lee, Doug Youn
AU - Lee, Jun Young
AU - Kim, Jung Hyun
PY - 2000/10
Y1 - 2000/10
N2 - The dynamic mechanical properties of poly(n-butyl methacrylate) (PBMA) latex films postadded with alkali-soluble resin (ASR) have been studied and compared with those of latex films prepared by emulsion polymerization in the presence of ASR (ASR-fortified latex). The miscibility between PBMA and ASR, poly(styrene/alpha-methylstyrene/acrylic acid) (SAA), was found to influence the dynamic mechanical behavior of the films. The dynamic properties of PBMA latex films postadded with SAA show two distinct damping peaks, which correspond to those of PBMA and SAA, respectively, in the phase-separated state. The SAA migrates onto film surface during film formation and, as a result SAA preserved their domains in the matrix phase, showing two distinct relaxations in the dynamic mechanical spectrum. On the other hand, the ASR-fortified films exhibit single damping peak. SAA-fortified latex particles would be core/shell structured, and the miscibility between PBMA and SAA is clearly improved by the grafting reaction between PBMA and SAA.
AB - The dynamic mechanical properties of poly(n-butyl methacrylate) (PBMA) latex films postadded with alkali-soluble resin (ASR) have been studied and compared with those of latex films prepared by emulsion polymerization in the presence of ASR (ASR-fortified latex). The miscibility between PBMA and ASR, poly(styrene/alpha-methylstyrene/acrylic acid) (SAA), was found to influence the dynamic mechanical behavior of the films. The dynamic properties of PBMA latex films postadded with SAA show two distinct damping peaks, which correspond to those of PBMA and SAA, respectively, in the phase-separated state. The SAA migrates onto film surface during film formation and, as a result SAA preserved their domains in the matrix phase, showing two distinct relaxations in the dynamic mechanical spectrum. On the other hand, the ASR-fortified films exhibit single damping peak. SAA-fortified latex particles would be core/shell structured, and the miscibility between PBMA and SAA is clearly improved by the grafting reaction between PBMA and SAA.
UR - http://www.scopus.com/inward/record.url?scp=0034301482&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034301482&partnerID=8YFLogxK
U2 - 10.1002/1097-4628(20001017)78:3<639::AID-APP200>3.0.CO;2-D
DO - 10.1002/1097-4628(20001017)78:3<639::AID-APP200>3.0.CO;2-D
M3 - Article
AN - SCOPUS:0034301482
SN - 0021-8995
VL - 78
SP - 639
EP - 649
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 3
ER -