Miscible binary blends containing the polyhydroxy ether of bisphenol‐a and various aliphatic polyesters

Harris, James; Goh, S. H.; Paul, Donald R; Barlow, J. W.

doi:10.1002/app.1982.070270305

Cited by 134 publications

(48 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1,2 In addition, they are also good candidates for forming miscible blends with hydroxyl-, halogen-, or nitrile-containing polymers. [3][4][5][6] Although poly(D,L-lactide) (PDLLA) is well known as a biodegradable polyester, the study of PDLLA as a blend component has received little attention. PDLLA is an amorphous polymer with a glass transition temperature (T g ) of 50°C, which is too low for many packaging uses.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Miscibility and phase behavior of poly(D,L-lactide)/poly(p-vinylphenol) blends

Zhang

Goh

Lee

1998

J. Appl. Polym. Sci.

Self Cite

View full text Add to dashboard Cite

ABSTRACT:The miscibility of poly(D,L-lactide) (PDLLA) and poly(p-vinylphenol) (PVPh) blends has been studied by differential scanning calorimetry and Fourier transform infrared spectroscopy (FTIR). Phase separation was observed in blends over a wide composition range. A PDLLA-rich phase was found to coexist with an almost pure PVPh phase. The quenched blend samples showed two glass transitions (T g s), except for a blend with a low PVPh content. However, the T g value of the PDLLA-rich phase showed a gradual increase with increasing PVPh content. No evidence of interassociation (hydrogen bond formation) between PDLLA and PVPh was found by FTIR. The phase behavior of the blends was simulated using an association model. The results suggested that the equilibrium constant of interassociation between PDLLA and PVPh was small. The phase compositions of the two separated phases were calculated using Fox, Gordon-Taylor, and Couchman equations. The amount of PVPh in the PDLLA-rich phase increased with increasing PVPh content in the blend.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Polymers such as poly(vinyl chloride), 4 poly(hydroxyether of bisphenol-A), 3 polyepichlorohydrin 29 are miscible with aliphatic polyesters having suitable CH x /COO ratios. These polymers are immiscible with a polyester that has a large or a small CH x /COO ratio.…”

mentioning

confidence: 99%

Miscibility and phase behavior of poly(D,L-lactide)/poly(p-vinylphenol) blends

Zhang

Goh

Lee

1998

J. Appl. Polym. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This gives rise to interactions that have yielded miscible phenoxy blends with, for example, poly(butylene terephthalate), [1][2][3][4] poly(ether sulphone), 5,6 polycaprolactone, [7][8][9] poly(methyl methacrylate) (PMMA), 10 -15 Hytrel, 16,17 aliphatic polyesters, 18 water-soluble polyethers, 19 and phenolphthaleinpoly(ether ether ketone). 20,21 Partially miscible blends, such as those with polysulphone 22 have also been studied.…”

Section: Introductionmentioning

confidence: 99%

Solid-state structure and properties of poly(ethyl methacrylate)/phenoxy blends

Erro¹,

Gaztelumendi²,

Nazábal³

1999

J. Appl. Polym. Sci.

View full text Add to dashboard Cite

Poly(ethyl methacrylate)/poly(hydroxy ether of bisphenol A) (PEMA/phenoxy or PEMA/Ph) blends were obtained by melt mixing to investigate their solid-state characteristics and mechanical properties. The slight structural change from poly-(methyl methacrylate) (PMMA) to PEMA spoiled the miscibility of PMMA/Ph blends leading to biphasic PEMA/Ph blends. It is proposed that an antiplasticizer in the case of PEMA, and a low molecular weight component in the case of Ph, as well as minor amounts of each component, migrated to the other phase during melt mixing. The mechanical properties of the blends were good, given that they were biphasic. The modulus of elasticity and yield stress values were found to be additive. Despite the below-additivity ductility values, ductile behavior was observed. The minor amount of the other component in each phase, and the migration of the antiplasticizer of PEMA, are proposed as the main causes of the observed mechanical properties.

show abstract

“…The generally observed decline in the melting temperature with increasing contents of the amorphous diluent leads to conclusion that B 12 and ÁH mix are negative for miscible binary blends. [40][41][42] Equation 5 suggests that the parameter, B, can be evaluated in exactly the same way for a ternary mixture as for a binary blend by determining the slope of the T m versus the amorphous volume fraction construction. Evaluation of B at PS/PCHMA (or PS/PPO) ratio of 1, should then allow evaluation of unknown interaction parameter for PS/PCHMA (or PS/PPO), B 13 (or B 0 13 ), via eqs 3 and 6.…”

Section: Comparison Of Miscibility and Morphology In Two Ternary Blenmentioning

confidence: 99%

Comparison of Miscibility and Morphology in Two Ternary Blend Systems: Effects of Binary Interactions

Woo

Liu

2004

Polym J

View full text Add to dashboard Cite

ABSTRACT:Experimental and theoretical studies on two ternary blend systems comprised of polystyrene (PS), isotactic polystyrene (iPS) and poly(cyclohexy methacrylate) (PCHMA) or poly(2,6-dimethyl-p-phenylene oxide) (PPO) are described. The differences in phase behavior and morphology of PS/iPS/PCHMA and PS/iPS/PPO ternary blends were investigated and compared by using differential scanning calorimeter (DSC), polarized-light optical microscopy (POM), and scanning electron microscopy (SEM). These two ternary blend systems were found to be completely miscible within the entire composition range at ambient temperature. However, cloud-point transition and LCST behavior was observed for the PS/iPS/PCHMA blend system, but not for the PS/iPS/PPO blend system. Phase diagrams for ternary systems of PS/iPS/PCHMA vs. PS/iPS/PPO at elevated temperatures of cloud points were constructed with the experimental data. Theoretical calculations were found to agree well with the data. Interaction parameters in the PS/iPS/PCHMA vs. PS/iPS/PPO ternary blends were evaluated to assess possible Á among all the binary pairs that constitute these two ternary blends. The melting point depression was used to investigate interactions between pairs of PS/PCHMA vs. PS/PPO, and it was found that asymmetry in the binary interactions led to more ternary phase instability, which was manifested as lowering the LCST and/or cloud points. [DOI 10.1295/polymj.36.909] KEY WORDS Ternary Polymer Blend / Phase Behavior / LCST / PPO / PS / PCHMA / iPS / Truly miscible ternary blends composed of three polymers different in properties may offer a unique opportunity to develop a new polymer material with flexible combination from three constituents. An approach via ternary systems offers more flexibility and better property balancing than what can be achieved by binary blends. Recent advance in studies on ternary polymer blends have resulted in a few more discoveries on miscible ternary blends. The miscibility of ternary polymer blends consisting of three miscible binary pairs has also been studied. [1][2][3][4][5][6] The fact that each binary pair is miscible does not guarantee that all ternary compositions will be. Depending on the interaction parameters of the three binary pairs, the ternary blend system may be completely miscible 3,7,8 or may show an immiscible loop. 9,10 Asymmetry in binary interaction parameters, the so-called Á effect, usually promotes phase separation and enlarges the immiscibility region.9-11 Kwei et al. 12 have reported ternary polymer blends of poly(methyl methacrylate) (PMMA), poly(ethyl methacrylate) (PEMA), and poly(vinylidene fluoride) (PVDF), in which the binary pair of PMMA and PEMA is immiscible; however, the addition of PVDF to the immiscible binary blend PMMA/PEMA can form a miscible ternary blend. Nishi et al. 13 have investigated the phase behavior of ternary polymer blends and analyzed their phase diagrams according to the Flory-Huggins-Scott theory. Ternary blends of PMMA, poly(epichlorohydrin), and PEO are miscible, w...

show abstract

Miscible binary blends containing the polyhydroxy ether of bisphenol‐a and various aliphatic polyesters

Cited by 134 publications

References 31 publications

Miscibility and phase behavior of poly(D,L-lactide)/poly(p-vinylphenol) blends

Miscibility and phase behavior of poly(D,L-lactide)/poly(p-vinylphenol) blends

Solid-state structure and properties of poly(ethyl methacrylate)/phenoxy blends

Comparison of Miscibility and Morphology in Two Ternary Blend Systems: Effects of Binary Interactions

Contact Info

Product

Resources

About