Miscible blends of poly(N,N-dimethylacrylamide) with five halogen-containing polymethacrylates

Low, S.M.; Lee, S.Y.; Goh, S. H.

doi:10.1016/0014-3057(94)90150-3

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…In future experiments, this study will be expanded to understand whether electronic and/or steric effects will have a contribution in the behavior of the interfacial molecules by varying the substituents, as described in Figure . It is worth noting that available literature is also very limited in studying the characterization of ClEMA − and PhEMA , as monomers and even as polymers, so it will be interesting to characterize and investigate the behavior of these substituted methacrylate monomers and polymers. To confirm monomer structure and vibrational peak assignments, IR, Raman, and nuclear magnetic resonance (NMR) spectra of HEMA, ClEMA, and PhEMA monomers are also presented.…”

Section: Introductionmentioning

confidence: 99%

Preferential Organization of Methacrylate Monomers and Polymer Thin Films at the Air Interface Using Femtosecond Sum Frequency Generation Spectroscopy

et al. 2015

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Monitoring and understanding monomer conformational changes as substituents are varied is an important step in investigating in situ polymerization and controlling the polymerization process as well as regulating the functionality of polymer surfaces to provide efficient polymer coatings. In this study, the preliminary stage involves characterization of the interfacial structures of methacrylate-based functional monomers and their polymer thin films at the air−liquid interface using femtosecond sum frequency generation spectroscopy (FSFGS). By varying the substituted ethyl group of the methacrylate monomers with hydroxy (−OH), chloro (−Cl), and phenoxy (−OPh), the alphamethyl (α-CH 3 ), alkene-methylene (alkene-CH 2 ), and methylene (CH 2 ) groups are observed to have preferential surface ordering toward the air interface. A peak positioned at ∼3000 cm −1 was observed in the spectrum of the 2-hydroxyethyl methacrylate (HEMA) monomer and assigned to alkene-CH 2 group. This functional group signifies that the pure monomer has not undergone polymerization. However, the SFG spectra of the polymer versions of these monomers revealed that for the poly(2hydroxyethyl methacrylate), the α-CH 3 group dominated the surface; in both poly(2-chloroethyl methacrylate) and poly(2phenoxyethyl methacrylate), the α-CH 3 and CH 2 groups were both segregated at the interface. These observations of the conformational changes of the monomer units and polymer thin films indicated that substitution of the ethyl group of the methacrylates affected the behavior of the interfacial molecules.

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Section: Introductionmentioning

confidence: 99%

Preferential Organization of Methacrylate Monomers and Polymer Thin Films at the Air Interface Using Femtosecond Sum Frequency Generation Spectroscopy

et al. 2015

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Miscible Polymers

Krause

Goh

1999

The Wiley Database of Polymer Properties

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Miscibility and complexation behavior of poly(cyanomethyl methacrylate) and poly(2‐cyanoethyl methacrylate) with tertiary amide polymers

Yeo

Lee

Goh

1995

J of Applied Polymer Sci

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PDMA) in T H F solutions. However, PCYEMA does not form complexes with PDMA in T H F solutions, but the THF-cast blends are miscible over the entire composition range. Both PCYMMA and PCYEMA do not form complexes with poly(2-ethyl-2-oxazoline) (PEOx) in T H F solutions and are only miscible with PEOx when the blend contains greater than 60 wt % PCYMMA or 80 wt % PCYEMA. On the other hand, both PCYMMA and PCYEMA do not form complexes with PMVAc, PVP, or PDMA in N,N-dimethylformamide (DMF) solutions. The compositions of the complexes consist of simple mole ratios of the component polymers, and the glass-transition temperatures of the complexes are higher than those of the DMF-cast blends of similar compositions. Fourier-transform infrared spectroscopy provides further evidence on the miscibility behavior through changes in the amide carbonyl absorption bands of each tertiary amide polymer in the blends as well as in the cyano absorption band of PCYEMA. 0

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Miscible blends of poly(N,N-dimethylacrylamide) with five halogen-containing polymethacrylates

Cited by 5 publications

References 18 publications

Preferential Organization of Methacrylate Monomers and Polymer Thin Films at the Air Interface Using Femtosecond Sum Frequency Generation Spectroscopy

Preferential Organization of Methacrylate Monomers and Polymer Thin Films at the Air Interface Using Femtosecond Sum Frequency Generation Spectroscopy

Miscible Polymers

Miscibility and complexation behavior of poly(cyanomethyl methacrylate) and poly(2‐cyanoethyl methacrylate) with tertiary amide polymers

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