Miscibility and Interactions in Blends and Complexes of Poly(N-acryloyl-N‘-phenylpiperazine) with Acidic Polymers

Abstract

Poly(N-acryloyl-N ‘-phenylpiperazine) (PAPP) forms miscible blends with poly(p-vinylphenol) (PVPh), and it forms complexes with three stronger acidic polymers, namely, poly(styrenesulfonic acid) (PSSA), poly(vinylphosphonic acid) (PVPA), and poly(acrylic acid) (PAA). Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy were used to study the nature of interpolymer interactions in these blends and complexes. All three types of interacting sites of PAPP are involved in interactions with the acidic polymers. PAPP interacts with PVPh and PAA through hydrogen-bonding interaction, whereas it interacts with PSSA and PVPA through a combination of hydrogen-bonding and ionic interactions. As compared to poly(N-acryloyl-N ‘-methylpiperazine), the interactions between PAPP and the acidic polymers are less intense because of the steric shielding effect of the phenyl groups and the lower basicity of the tertiary amine nitrogen.

Interpolymer Complexes through Hydrophobic Interactions: C60-End-Capped Linear or Four-Arm Poly(ethylene oxide)/Poly(acrylic acid) Complexes

“…The yield and composition of complex depend on feed composition as commonly observed for many interpolymer complexes. [24][25][26][27][28][29][30][31] The EO/AA ratio in the complex increases with increasing C 60 -end-capped PEO content in the feed. Figure 5 shows the FTIR spectra of PAA and the FPEO5F/PAA complexes.…”

Water and salt transport properties of zwitterionic polymers film

“…PSBMA films exhibit the highest water uptake, followed by PCBMA and PEGA. We believe the different water binding characteristics of the three monomers can explain this result [35]. The PEG ether groups hydrogen bond with water via the lone pair electrons on the oxygen atoms, and this hydrogen bond strength is less than that for the polymers that contain highly polar charged groups.…”

Miscibility and interactions in blends of two proton‐donating polymers: Poly(acrylic acid)/poly(p‐vinylphenol) blends

“…XPS measurements were carried out on a VG Scientific Escalab MKII spectrometer equipped with an Mg Kα X‐ray source (1235.6‐eV photons) and a hemispherical energy analyzer. Detailed information about the measurements and data processing has been reported elsewhere 8…”