Formation of interpolymer complexes between poly(monoethyl itaconate) and poly(<i>N</i>‐vinyl‐2‐pyrrolidone)

Cesteros, Luis C.; Meaurio, Emilio; Katime, Issa

doi:10.1002/pi.1994.210340113

Cited by 43 publications

(22 citation statements)

References 23 publications

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“…It is known that a new carbonyl band develops at a lower frequency when the carbonyl groups of PVP undergo hydrogen-bonding interactions with proton-donating polymers. 29,30 A new band at 1654 cm Ϫ1 is observed in the PVP(HBA) x blends, showing the existence of a hydrogen-bonding interaction between PVP and HBA. The blends also show the development of another new band at 1710 cm Ϫ1 .…”

Section: Resultsmentioning

confidence: 92%

Specific interactions in 4‐hydroxybenzoic acid/poly(2‐vinylpyridine)/poly(N‐vinyl‐2‐pyrrolidone) blends

Goh

2001

J of Applied Polymer Sci

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ABSTRACT:The specific interactions in ternary 4-hydroxybenzoic acid (HBA)/poly(2-vinylpyridine) (P2VPy)/poly(N-vinyl-2-pyrrolidone) (PVP) blends were studied by differential scanning calorimetry, Fourier transform infrared (FTIR) spectroscopy, and electron microscopy. FTIR study shows the existence of hydrogen-bonding interactions between HBA and P2VPy as well as PVP. The addition of a sufficiently large amount of HBA produces a blend showing one glass-transition temperature (T g ). Microscopic study shows a drastic reduction in domain size in single-T g blends.

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Section: Resultsmentioning

confidence: 92%

Specific interactions in 4‐hydroxybenzoic acid/poly(2‐vinylpyridine)/poly(N‐vinyl‐2‐pyrrolidone) blends

Goh

2001

J of Applied Polymer Sci

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“…Because PNVP is a strong proton acceptor polymer [10] and the PEAA-20 is a proton donor polymer, [14] the possible existence of hydrogen-bonding interactions between these two polymers was examined with FTIR spectroscopy. Figure 5 shows partial IR spectra (1 570-1 771 cm -1 ) of the PNVP, the PEAA-20 and their mixtures.…”

Section: Resultsmentioning

confidence: 99%

“…First, we determine the miscibility window by DSC of mixtures made by dissolution in a solvent. Because PNVP is a strong proton acceptor polymer, [10] we study the role of the acrylic acid in promoting miscibility by hydrogen bonding interactions by infrared spectroscopy. Full Paper: The miscibility behavior promoted by hydrogen bonding interactions in mixtures of poly(N-vinylpyrrolidone) (PNVP) and a copolymer of ethylene/acrylic acid (PEAA-20) is studied by differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA) and infrared spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Bonding and Miscibility Behavior in Poly[ethylene-co-(acrylic acid)] and Poly(N-vinylpyrrolidone) Mixtures

Nuño‐Donlucas

Puig

Katime³

2001

Macromol. Chem. Phys.

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“…Mono n-alkyl itaconates were obtained by the esterification of itaconic acid with the corresponding alcohol, using acetyl chloride as catalyst, according to a method previously described. 4 The monomers were characterized by FTIR, 1 H NMR and 13 C NMR. The poly(mono n-alkyl itaconates) used in this study, poly(monomethyl itaconate) PMMI, poly(monoethyl itaconate) PMEI, poly(monobutyl itaconate) PMBuI, poly(monohexyl itaconate) PMHeI, poly(monodecyl itaconate) PMDeI, and poly(monododecyl itaconate) y To whom correspondence should be addressed.…”

Section: Methodsmentioning

confidence: 99%

Blends of Poly(mono n-alkyl itaconates) with Tertiary Polyamides: Specific Interactions and Thermal Degradation

Meaurio

Cesteros

Parada

et al. 2004

Polym J

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ABSTRACT:The specific interactions in blends of poly(mono-n-alkyl itaconate)s with two tertiary polyamides, the poly(N,N-dimethylacrylamide) (PDMA) and the poly(ethyloxazoline) (PEOX), were studied. Hydrogen bonding between carboxylic acid groups of poly(mono-n-alkyl itaconate)s and carbonyl groups of PDMA and PEOX was found. The interassociation extent was measured by spectral fitting of the Amide I band and reveals a loss of interassociating ability in blends with PDMA as the length of the size group of the poly(mono-n-alkyl itaconate) increases, while in blends with PEOX the interassociation degree remains constant for a given composition. This different behavior is attributed to the larger interspacing between vicinal carbonyl groups in PEOX. Spectral changes upon heating showed an increase of thermal stability of the polyacid in the blends, larger in blends with PDMA than PEOX. These changes are explained in terms of the hydrogen bonding and the rigidity of the system. Finally, the ratio of absortion coefficients for the Amide I band was obtained.KEY WORDS FTIR / Specific Interactions / Hydrogen Bonding / Poly(mono-n-alkyl itaconate)s / Poly(N,N-dimethylacrylamide) (PDMA) / Poly(ethyloxazoline) (PEOX) / During the past years, the study of polymer blends as alternative materials has greatly expanded. Miscibility of polymer blends can only be achieved when the entalpy of mixing is negative, since the entropic contribution to the free energy of mixing is negligible. Therefore, specific interactions at the molecular level will promote the formation of miscible polymer blends.Mixing of polyacids with polybases usually leads to hydrogen bonded miscible polymer blends. Poly(monomethyl itaconate) (PMMI) is an interesting polyacid due to its biotechnological origin that has been reported to be miscible with poly(ethyloxazoline) (PEOX) and poly(N,N-dimethylacrylamide) (PDMA).1 In the present work, we are interested in expanding the miscibility study to poly(mono-n-alkyl itaconate)s with alkyl side groups ranging from methyl to dodecyl. These polymers contain the same donor group, but side groups of different length, and thus, different steric hindrances are expected. As specific interactions are the responsible for miscibility, their strength and extent are foundamental parameters to explain the miscibility behavior of these polymer blends. Moreover, their study has an additional interest: these polymer systems are known to form interpolymer complexes in the appropiate medium and temperature conditions, 1,2 and further insight in their complexation behavior should be gained.Thus, the present work deals with a FTIR study of the specific interactions present in the poly(mono-nalkyl itaconate)/PDMA or PEOX blends. The extent of the interassociation is determined by spectral curve fitting methods. In addition, the spectral behavior with respect to temperature has been studied, and the differences of thermal stability observed have been discussed. EXPERIMENTALThe polymerization of poly(N,N-dimethylacrylamide) (PDMA) has b...

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Formation of interpolymer complexes between poly(monoethyl itaconate) and poly(N‐vinyl‐2‐pyrrolidone)

Cited by 43 publications

References 23 publications

Specific interactions in 4‐hydroxybenzoic acid/poly(2‐vinylpyridine)/poly(N‐vinyl‐2‐pyrrolidone) blends

Specific interactions in 4‐hydroxybenzoic acid/poly(2‐vinylpyridine)/poly(N‐vinyl‐2‐pyrrolidone) blends

Hydrogen Bonding and Miscibility Behavior in Poly[ethylene-co-(acrylic acid)] and Poly(N-vinylpyrrolidone) Mixtures

Blends of Poly(mono n-alkyl itaconates) with Tertiary Polyamides: Specific Interactions and Thermal Degradation

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