Abstract
The complex phase behavior of a weakly interacting binary polymer blend was studied. It was shown that the weakly interacting PS/poly(n-pentylmethacrylate) blend exhibits both a UCST and an LCST. The PS-block-poly(n-pentyl methacrylate) copolymers [PS-b-PnPMA] exhibit closed-loop phase behavior, where the lower disorder-to-order transition (LDOT) and upper-to-disorder transition (UODT) curves from the lower and upper bounds of closed loop. The major difference in the phase behavior of PS/PnPMA blends from that of PS-b-PnPMA copolymers was the lack of evidence of an upper critical solution transition (u-UCST) above an observed LCST in the blend system. The LCST was characterized by a negative volume change on mixing, resulting in enhanced miscibility.
| Original language | English |
|---|---|
| Pages (from-to) | 5851-5855 |
| Number of pages | 5 |
| Journal | Macromolecules |
| Volume | 37 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2004 Aug 10 |
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All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry
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Complex phase behavior of a weakly interacting binary polymer blend. / Ryu, Du Yeol; Lee, Dong Hyun; Jang, Jin; Kim, Jin Kon; Lavery, Kristopher A.; Russell, Thomas P.
In: Macromolecules, Vol. 37, No. 16, 10.08.2004, p. 5851-5855.Research output: Contribution to journal › Article
TY - JOUR
T1 - Complex phase behavior of a weakly interacting binary polymer blend
AU - Ryu, Du Yeol
AU - Lee, Dong Hyun
AU - Jang, Jin
AU - Kim, Jin Kon
AU - Lavery, Kristopher A.
AU - Russell, Thomas P.
PY - 2004/8/10
Y1 - 2004/8/10
N2 - The complex phase behavior of a weakly interacting binary polymer blend was studied. It was shown that the weakly interacting PS/poly(n-pentylmethacrylate) blend exhibits both a UCST and an LCST. The PS-block-poly(n-pentyl methacrylate) copolymers [PS-b-PnPMA] exhibit closed-loop phase behavior, where the lower disorder-to-order transition (LDOT) and upper-to-disorder transition (UODT) curves from the lower and upper bounds of closed loop. The major difference in the phase behavior of PS/PnPMA blends from that of PS-b-PnPMA copolymers was the lack of evidence of an upper critical solution transition (u-UCST) above an observed LCST in the blend system. The LCST was characterized by a negative volume change on mixing, resulting in enhanced miscibility.
AB - The complex phase behavior of a weakly interacting binary polymer blend was studied. It was shown that the weakly interacting PS/poly(n-pentylmethacrylate) blend exhibits both a UCST and an LCST. The PS-block-poly(n-pentyl methacrylate) copolymers [PS-b-PnPMA] exhibit closed-loop phase behavior, where the lower disorder-to-order transition (LDOT) and upper-to-disorder transition (UODT) curves from the lower and upper bounds of closed loop. The major difference in the phase behavior of PS/PnPMA blends from that of PS-b-PnPMA copolymers was the lack of evidence of an upper critical solution transition (u-UCST) above an observed LCST in the blend system. The LCST was characterized by a negative volume change on mixing, resulting in enhanced miscibility.
UR - http://www.scopus.com/inward/record.url?scp=4344627536&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4344627536&partnerID=8YFLogxK
U2 - 10.1021/ma049329l
DO - 10.1021/ma049329l
M3 - Article
AN - SCOPUS:4344627536
VL - 37
SP - 5851
EP - 5855
JO - Macromolecules
JF - Macromolecules
SN - 0024-9297
IS - 16
ER -