Synthesis and characterization of polymers with a photosensitive group

Madheswari, D.; Subramanian, K. G.; Reddy, A.V.R.

doi:10.1016/0014-3057(95)00154-9

Cited by 22 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Resonance signal of the pendant ethylene group, which is flanked by a ketone and a phenyl ring, is observed at 6.63 ppm, and the ethylene proton H adjacent to aromatic presents at 7.90 ppm [25]. The resonance peak at 5.22 ppm corresponds to the methine group connecting with the ester bond [26, 27]. The appearance of these signals in Fig.…”

Section: Resultsmentioning

confidence: 99%

The synthesis of poly(vinyl cinnamates) and its self‐assembled structure

Liu

Zhang

et al. 2012

Polymer Engineering & Sci

View full text Add to dashboard Cite

Poly(vinyl cinnamates) (PVCi) with different degrees of substitution (DS) are synthesized by grafting p‐chloro‐substituted cinnamic acid onto poly(vinyl alcohol). The chemical structures of PVCi were confirmed by 1H NMR. Amphiphilic PVCi copolymers were self‐assembled into particles in a selective solvent. The morphology and diameter of particles have been studied by scanning electron microscopic and dynamic light scattering. The morphology and hydrodynamic diameter have strong relationship with DS and water content introduced during self‐assembly process. The prepared PVCi could photo‐cross‐link at λ = 360 nm due to the photodimerization between pendant cinnamate groups. However, the self‐assembled PVCi particles did not present photo‐crosslinking behavior. The formed regular particles could disperse in aqueous solution, which increases their applications in biomedical fields. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers

show abstract

Section: Resultsmentioning

confidence: 99%

The synthesis of poly(vinyl cinnamates) and its self‐assembled structure

Liu

Zhang

et al. 2012

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…cinnamate [8,24] or coumarin [25] chromophores, were used. To reduce the hydrophobic influence of the chromophore backbone we chose a chromophore bearing a permanent charge.…”

Section: Resultsmentioning

confidence: 99%

Photocrosslinking of thin films of temperature-sensitive polymers

Kuckling

Adler

Arndt

et al. 1999

Polym. Adv. Technol.

View full text Add to dashboard Cite

The use of polymeric materials with temperature‐dependent degrees of swelling (especially polymers that exhibit lower critical solution temperature (LCST) behaviour in aqueous solutions) in microsystems requires the preparation and patterning of layers in the µm range. Copolymers based on N‐isopropylacrylamide were modi‐fied with a stilbazolium salt chromophore to yield photocrosslinkable temperature‐sensitive polymers. The chromophore and the polymers were characterized by UV, IR, 1H‐NMR (nuclear magnetic resonance) and 13C‐NMR spectra. The resulting polymers showed LCST behaviour, which was measured by differential scanning calorimetry. The photocrosslinking properties were studied by UV irradiation of the thin films and measurement of the changes in the UV absorption spectra. By irradiation of thin films through a mask it was possible to obtain patterned networks in the µm range (20 µm space width and ≥50 µm line width). The resulting patterned networks showed temperature‐dependent swelling properties in aqueous media. Copyright © 1999 John Wiley & Sons, Ltd.

show abstract

“…In continuation of our earlier work 18,19 on polymers containing a pendant photocrosslinkable group, the synthesis, characterization, thermal stability and photocrosslinking properties of poly(4-methacryloyloxyphenyl-4'-chlorostyryl ketone) are reported in the present paper. The presence of chalcone groups in the polymer provides advantages when converting them into photocrosslinked polymers.…”

Section: Introductionmentioning

confidence: 91%