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- Title
Badanie wpływu struktury uretano-dimetakrylanów na morfologię i właściwości otrzymywanych z nich polimerów.
- Authors
Barszczewska-Rybarek, Izabela
- Abstract
The monomers were synthesized from monomethacrylates of glycols: mono-, di-, tri or tetraethylene one and diisocyanates: hexamethylene diisocyanate (HMDI), 4,4'-methylenebis(cyclohexyl isocyanate) (CHMDI) or 4,4'-methylenebis(phenyl isocyanate) (MDI) (Scheme A). Three homologous series of poly(urethane-dimethylacrylate) polymers [poly(UDMA)] were obtained by photopolymerization of these monomers. The effect of monomers chemical structure on selected mechanical properties (dynamic elastic modulus, Brinell hardness) and on morphology of the polymers obtained were investigated (Fig. 1-3). Polymer morphology was studied by atomic force microscopy (AFM) and X-ray powder diffraction (XRPD) methods (Fig. 4 and 5). XRPD method was used for quantitative description of poly(UDMA) network's heterogeneity (Fig. 6). The results show that mechanical properties of poly(UDMA) depend on monomer chemical structure, double bond conversion and dimensions of ordered zones.
- Subjects
PHOTOPOLYMERIZATION; URETHANE; ACRYLATES; POLYMERS; MONOMERS; ETHYLENE glycol; ATOMIC force microscopy; PROPERTIES of matter; X-ray diffractometers
- Publication
Polimery, 2008, Vol 53, Issue 3, p190
- ISSN
0032-2725
- Publication type
Article