FT‐IR Spectroscopy and Hydrogen Bonding Interactions in Poly(styrene‐<i>co</i>‐methacrylic acid)/Poly(styrene‐<i>co</i>‐4‐vinyl pyridine) Blends

Elmiloudi, Khaled; Benygzer, Mourad; Djadoun, Saïd; Sbirrazzuoli, Nicolas; Géribaldi, Serge

doi:10.1002/masy.200551140

Cited by 21 publications

(18 citation statements)

References 18 publications

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“…In previous studies,18, 19 we reported that PPO is totally miscible with poly(styrene‐ co ‐methacrylic acid) (PSMA) containing 7.8 mol % methacrylic acid (PSMA‐7.8, where the number following the hyphen refers to the percentage methacrylic acid in the polymer) and with blends of PSMA‐12 containing less than 67 wt % PPO. As we have also confirmed qualitatively and quantitatively by Fourier transform infrared (FTIR) spectroscopy,20 the miscibility of PSMA‐12/poly(styrene‐ co ‐4‐vinylpyridine) (PS4VP) containing 22% 4‐vinylpyridine (PS4VP‐22, where the number following the hyphen refers to the percentage 4VP in the polymer) is due to the presence of hydrogen‐bonding interactions.…”

Section: Introductionsupporting

confidence: 67%

Phase behavior of binary and ternary blends of poly(styrene‐co‐methacrylic acid), poly(styrene‐co‐4‐vinylpyridine), and poly(2,6‐dimethyl‐1,4‐phenylene oxide)

Benabdelghani

Djadoun

Etxeberria

et al. 2007

J of Applied Polymer Sci

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Poly(styrene-co-methacrylic acid) (PSMA) and poly(styrene-co-4-vinylpyridine) (PS4VP) of different compositions were prepared and characterized. The phase behavior of these copolymers as binary PSMA/PS4VP mixtures or with poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) as PPO/PSMA or PPO/PS4VP and PPO/PSMA/PS4VP ternary blends was investigated by differential scanning calorimetry (DSC). This study showed that PPO was miscible with PS4VP containing up to 15 mol % 4-vinylpyridine (4VP) but immiscible with PS4VP-30 (where the number following the hyphen refers to the percentage 4VP in the polymer) and PSMA-20 (where the number following the hyphen refers to the percentage methacrylic acid in the polymer) over the entire composition range. To examine the morphology of the immiscible blends, scanning electron microscopy was used. Because of the hydrogen-bonding specific interactions that occurred between the carboxylic groups of PSMA and the pyridine groups of PS4VP, chloroform solutions of PSMA-20 and PS4VP-15 formed interpolymer complexes. The obtained glass-transition temperatures (T g 's) of the PSMA-20/PS4VP-15 complexes were found to be higher than those calculated from the additivity rule. Although, depending on the content of 4VP, the shape of the T g of the PPO/PS4VP blends changed from concave to S-shaped in the case of the miscible blends, two T g were observed with each PPO/PS4VP-30 and PPO/ PS4VP-40 blend. The thermal stability of the PSMA-20/ PS4VP-15 interpolymer complexes was studied by thermogravimetry. On the basis of the obtained results, the phase behavior of the ternary PPO/PSMA-20/PS4VP-15 blends was investigated by DSC.

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Section: Introductionsupporting

confidence: 67%

Phase behavior of binary and ternary blends of poly(styrene‐co‐methacrylic acid), poly(styrene‐co‐4‐vinylpyridine), and poly(2,6‐dimethyl‐1,4‐phenylene oxide)

Benabdelghani

Djadoun

Etxeberria

et al. 2007

J of Applied Polymer Sci

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“…In common case both the peak position and shape of the C v O stretching are very sensitive to local environment. [23][24][25][26][27] In our case, three different types of hydrogen bonds can occur as shown in schematic in Fig. 24 Formation of one hydrogen bond can cause this frequency redshifts by 20-25 cm −1 .…”

Section: Resultsmentioning

confidence: 98%

Size-dependent surface CO stretching frequency investigations on nanodiamond particles

Perevedentseva

Chung

et al. 2006

The Journal of Chemical Physics

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In this work, the spectroscopic properties of surface functionalized nanodiamond particles are investigated via Fourier transform infrared spectroscopy. The functionalization of the nanodiamond surface was achieved chemically using strong acid treatment method. The size dependent C=O stretching frequency (between 1680 and 1820 cm(-1)) are studied for particle diameter sizes from the 5 to 500 nm range. The surface C=O stretching frequencies at approximately 1820 cm(-1), for large particle size (500 nm), down shifted to 1725 cm(-1) (5 nm) with decreasing particle sizes. We attributed the shift as a result of hydrogen bond formation between the COOH groups in the carboxylated nanodiamond surfaces. Particle size was characterized with dynamic light scattering method and surface morphology of the particles was investigated with scanning electron microscopy. The influence of pH value on C=O stretching frequency is also analyzed. This finding affords useful information for the studying of surface functionalized nanodiamonds with implications for their interaction with biomolecules.

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“…In fact, the value for the autoassociation constant through carbonyl groups in PS-MAA copolymers at 25 8C is 9.2 or 22. [18] It seems that our systems display low hydrogen bond interactions (moderate at most), and therefore a single set of parameters has been used to evaluate the…”

Section: Discussionmentioning

confidence: 99%

Ternary Polymer Solutions with Hydrogen Bonds, 2

Figueruelo

Monzó

Gómez

et al. 2007

Macro Theory & Simulations

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Experimental ternary phase diagrams for ternary systems CHL/PS‐MAA/PVPy with diverse MAA contents have been determined by GPC. The presence of MAA in the copolymers gives rise to specific interactions, by hydrogen bond formation between both polymeric components, so strong that the isotherm for the system with the highest MAA content so far studied, CHL/PS‐MAA(8%)/PVPy, is representative of a complex coacervation situation. By applying the theoretical background deduced by coupling the Flory‐Huggins lattice model to the AET developed for ternary polymeric systems SPP with specific intermolecular interactions (via hydrogen bonds), free energy surfaces for the CHL/PS‐MAA/PVPy systems are constructed. From these plots theoretical ternary phase diagrams are deduced and a fair agreement with those obtained experimentally is observed.

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FT‐IR Spectroscopy and Hydrogen Bonding Interactions in Poly(styrene‐co‐methacrylic acid)/Poly(styrene‐co‐4‐vinyl pyridine) Blends

Cited by 21 publications

References 18 publications

Phase behavior of binary and ternary blends of poly(styrene‐co‐methacrylic acid), poly(styrene‐co‐4‐vinylpyridine), and poly(2,6‐dimethyl‐1,4‐phenylene oxide)

Phase behavior of binary and ternary blends of poly(styrene‐co‐methacrylic acid), poly(styrene‐co‐4‐vinylpyridine), and poly(2,6‐dimethyl‐1,4‐phenylene oxide)

Size-dependent surface CO stretching frequency investigations on nanodiamond particles

Ternary Polymer Solutions with Hydrogen Bonds, 2

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