Immiscibility, upper critical solution temperature, and miscibility in blends of poly(vinyl ether)s with polyacrylics

Effects of pendant groups

Eamor Woo, Yau Tsung Juang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Various phase behavior of blends of poly(vinyl ether)s with homologous acrylic polymers (polymethacrylates or polyacrylates) were examined using differential scanning calorimetry, optical microscopy (OM), and Fourier-transformed infrared spectroscopy. Effects of varying the pendant groups of either of constituent polymers on the phase behavior of the blends were analyzed. A series of interestingly different phase behavior in the blends has been revealed in that as the pendant group in the acrylic polymer series gets longer, polymethacrylate/poly(vinyl methyl ether) (PVME) blends exhibit immiscibility, upper critical solution temperature (UCST), and miscibility, respectively. This study found that the true phase behavior of poly(propyl methacrylate)/PVME [and poly(isopropyl methacrylate)/PVME)] blend systems, though immiscible at ambient, actually displayed a rare UCST upon heating to higher temperatures. Similarly, as the methyl pendant group in PVE is lengthened to ethyl (i.e., PVME replaced by PVEE), phase behavior of its blends with series of polymethacrylates or polyacrylates changes correspondingly. Analyses and quantitative comparisons on four series of blends of PVE/acrylic polymer were performed to thoroughly understand the effects of pendant groups in either polyethers (PVE's) or acrylic polymers on the phase behavior of the blends of these two constituents.

Original languageEnglish
Pages (from-to)1521-1534
Number of pages14
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume45
Issue number13
DOIs
Publication statusPublished - 2007 Jul 1

Fingerprint

Methacrylates
Phase behavior
Polyacrylates
acrylic resins
Ethers
ethers
solubility
Solubility
Acrylics
Temperature
temperature
Polyethers
Methyl Ethers
Optical microscopy
vinyl ether
polymethacrylic acid
Differential scanning calorimetry
Infrared spectroscopy
Heating
heat measurement

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

@article{33fa93d826a64dd38aa045f6cdfca63e,
title = "Immiscibility, upper critical solution temperature, and miscibility in blends of poly(vinyl ether)s with polyacrylics: Effects of pendant groups",
abstract = "Various phase behavior of blends of poly(vinyl ether)s with homologous acrylic polymers (polymethacrylates or polyacrylates) were examined using differential scanning calorimetry, optical microscopy (OM), and Fourier-transformed infrared spectroscopy. Effects of varying the pendant groups of either of constituent polymers on the phase behavior of the blends were analyzed. A series of interestingly different phase behavior in the blends has been revealed in that as the pendant group in the acrylic polymer series gets longer, polymethacrylate/poly(vinyl methyl ether) (PVME) blends exhibit immiscibility, upper critical solution temperature (UCST), and miscibility, respectively. This study found that the true phase behavior of poly(propyl methacrylate)/PVME [and poly(isopropyl methacrylate)/PVME)] blend systems, though immiscible at ambient, actually displayed a rare UCST upon heating to higher temperatures. Similarly, as the methyl pendant group in PVE is lengthened to ethyl (i.e., PVME replaced by PVEE), phase behavior of its blends with series of polymethacrylates or polyacrylates changes correspondingly. Analyses and quantitative comparisons on four series of blends of PVE/acrylic polymer were performed to thoroughly understand the effects of pendant groups in either polyethers (PVE's) or acrylic polymers on the phase behavior of the blends of these two constituents.",
author = "Eamor Woo and Juang, {Yau Tsung}",
year = "2007",
month = "7",
day = "1",
doi = "10.1002/polb.21143",
language = "English",
volume = "45",
pages = "1521--1534",
journal = "Journal of Polymer Science, Part B: Polymer Physics",
issn = "0887-6266",
publisher = "John Wiley and Sons Inc.",
number = "13",

}

TY - JOUR

T1 - Immiscibility, upper critical solution temperature, and miscibility in blends of poly(vinyl ether)s with polyacrylics

T2 - Effects of pendant groups

AU - Woo, Eamor

AU - Juang, Yau Tsung

PY - 2007/7/1

Y1 - 2007/7/1

N2 - Various phase behavior of blends of poly(vinyl ether)s with homologous acrylic polymers (polymethacrylates or polyacrylates) were examined using differential scanning calorimetry, optical microscopy (OM), and Fourier-transformed infrared spectroscopy. Effects of varying the pendant groups of either of constituent polymers on the phase behavior of the blends were analyzed. A series of interestingly different phase behavior in the blends has been revealed in that as the pendant group in the acrylic polymer series gets longer, polymethacrylate/poly(vinyl methyl ether) (PVME) blends exhibit immiscibility, upper critical solution temperature (UCST), and miscibility, respectively. This study found that the true phase behavior of poly(propyl methacrylate)/PVME [and poly(isopropyl methacrylate)/PVME)] blend systems, though immiscible at ambient, actually displayed a rare UCST upon heating to higher temperatures. Similarly, as the methyl pendant group in PVE is lengthened to ethyl (i.e., PVME replaced by PVEE), phase behavior of its blends with series of polymethacrylates or polyacrylates changes correspondingly. Analyses and quantitative comparisons on four series of blends of PVE/acrylic polymer were performed to thoroughly understand the effects of pendant groups in either polyethers (PVE's) or acrylic polymers on the phase behavior of the blends of these two constituents.

AB - Various phase behavior of blends of poly(vinyl ether)s with homologous acrylic polymers (polymethacrylates or polyacrylates) were examined using differential scanning calorimetry, optical microscopy (OM), and Fourier-transformed infrared spectroscopy. Effects of varying the pendant groups of either of constituent polymers on the phase behavior of the blends were analyzed. A series of interestingly different phase behavior in the blends has been revealed in that as the pendant group in the acrylic polymer series gets longer, polymethacrylate/poly(vinyl methyl ether) (PVME) blends exhibit immiscibility, upper critical solution temperature (UCST), and miscibility, respectively. This study found that the true phase behavior of poly(propyl methacrylate)/PVME [and poly(isopropyl methacrylate)/PVME)] blend systems, though immiscible at ambient, actually displayed a rare UCST upon heating to higher temperatures. Similarly, as the methyl pendant group in PVE is lengthened to ethyl (i.e., PVME replaced by PVEE), phase behavior of its blends with series of polymethacrylates or polyacrylates changes correspondingly. Analyses and quantitative comparisons on four series of blends of PVE/acrylic polymer were performed to thoroughly understand the effects of pendant groups in either polyethers (PVE's) or acrylic polymers on the phase behavior of the blends of these two constituents.

UR - http://www.scopus.com/inward/record.url?scp=34547240746&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547240746&partnerID=8YFLogxK

U2 - 10.1002/polb.21143

DO - 10.1002/polb.21143

M3 - Article

VL - 45

SP - 1521

EP - 1534

JO - Journal of Polymer Science, Part B: Polymer Physics

JF - Journal of Polymer Science, Part B: Polymer Physics

SN - 0887-6266

IS - 13

ER -