THE EFFECT OF CHEMICAL STRUCTURE OF VINYL CHLORIDE BASED POLYMERS ON ITS THE COMPATIBILITY WITH POLYURETHANEUREA ELASTOMER DOI
T. L. Malysheva, A. L. Tolstov,

O. V. Zinchenko

et al.

Polymer journal, Journal Year: 2024, Volume and Issue: 46(2), P. 103 - 110

Published: Aug. 7, 2024

The effect of the chemical structure vinyl chloride-based polymers, such as poly(vinyl chloride) (PVC), chlorinated PVC (cPVC), chloride/vinylidene chloride copolymer VCVD-40TM, chloride/vinyl acetate А-15TM on its compatibility with poly(ether-urethane)urea elastomer (PUU) was studied by DSC and FTIR spectroscopy. segmented PUU synthesized prepolymer approach in N,N-dimethylformamide (DMF) solution using poly(propylene glycol) number-averaged molecular weight (Mn) 1000 Da, 2,4-tolylenediisocyanate tolylene 2,4-diamine a chain extender at molar ratio 1:2:1. PUU/vinyl polymer blends prepared casting technique vie DMF solution. It found based containing 30 % (PUU/30PVC blend) or cPVC (PUU/30cPVC) were initiated strong hydrogen bonding. As result, are characterized single wide relaxation transition. A glass transition temperature (Тс) PUU/30PVC composite is similar to theoretical one (ТFс), which calculated Flory-Fox equation, whereas Тс value PUU/30cPVC higher than ТFс. Introducing polar vinylidene fragments into macrochains suppresses components initiates formation biphase microheterogeneous structure. intermolecular bonding network interface polymer-polymer confirmed Comparative analysis experimental theoretically (additive) tensile characteristics demonstrates their substantial dependence interactions between constituents. highest strengthening observed for PVC-containing nanocomposites.

Language: Английский

Glutathione-integrated waterborne polyurethanes: Aqueous dispersible, redox-responsive biomaterials for cancer drug delivery DOI Creative Commons
Francesco Cancilla, Annalisa Martorana, Calogero Fiorica

et al.

European Polymer Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113759 - 113759

Published: Jan. 1, 2025

Language: Английский

Citations

0
Polymer-Based Scaffolds as an Implantable Material in Regenerative Dentistry: A Review DOI Creative Commons

Ľuboš Leško,

Petra Jungová, Martina Culenova

et al.

Journal of Functional Biomaterials, Journal Year: 2025, Volume and Issue: 16(3), P. 80 - 80

Published: Feb. 24, 2025

Polymer-based scaffolds have emerged as transformative materials in regenerative dentistry, enabling the restoration and replacement of dental tissues through tissue engineering approaches. These scaffolds, derived from natural synthetic polymers, mimic extracellular matrix to promote cellular attachment, proliferation, differentiation. Natural polymers such collagen, chitosan, alginate offer biocompatibility bioactivity, while alternatives like polylactic acid (PLA) polycaprolactone (PCL) provide tunable mechanical properties degradation rates. Recent advancements highlight integration bioactive molecules nanotechnology enhance potential these materials. Furthermore, developing hybrid combining addresses strength challenges, paving way for patient-specific treatments. Innovations 3D bioprinting stimuli-responsive biomaterials are expected refine scaffold design further, improving therapeutic precision clinical outcomes. This review underscores critical role polymer-based advancing focusing on their applications, advantages, limitations.

Language: Английский

Citations

0
Mussel-inspired surface-engineering of 3D printed scaffolds employing bedecked transition metal for accelerated bone tissue regeneration DOI
Sanjoy Kumar Ghorai, Abir Dutta, Bhuvaneshwaran Subramanian

et al.

Biomaterials Advances, Journal Year: 2025, Volume and Issue: unknown, P. 214309 - 214309

Published: April 1, 2025

Language: Английский

Citations

0
STUDY OF COMPATIBILITY OF POLY(ETHER URETHANE UREA) ELASTOMER WITH VINYL CHLORIDE POLYMERS DOI
T. L. Malysheva, A. L. Tolstov

Polymer journal, Journal Year: 2025, Volume and Issue: 46(4), P. 266 - 273

Published: April 7, 2025

The effect of the chemical structure vinyl chloride-based polymers (VCP) on their compatibility with poly(ether-urethane-urea) elastomer (PUU) has been studied. Among a variety VCP, poly(vinyl chloride) (PVC), chlorinated PVC (CPVC), chloride/vinyl acetate copolymers 15 wt.% (A-15 copolymer) and 25 (A-25 moieties were used. PUU/VCP blends obtained by solution casting technique using N,N-dimethylformamide as solvent. Observation structural features polymer-polymer showed appearance donor-acceptor interactions between nitrile rigid segments PUU polar groups VCP at interface. Using DSC, formation mixed phase was observed in 30 or A-15 copolymer, composites are characterized three glass relaxation transitions. With increasing content up to 50-70 wt.%, components decreases form biphasic microheterogeneous structure. Increasing chlorine CPVC enhances blends. These single broad transition over entire concentration range. experimentally determined temperature (Тс) PUU/40CPVC (a number indicates wt.%) is higher than theoretical one calculated Flory-Fox equation. This fact an interpolymer complex blend. thermoplastics (А-25 results decrease its elastomer. Finally, these formulations separation processes activated all composition A comparative analysis dependence density, tensile strength residual strain confirms significant influence interfacial adhesion, maximum strengthening composite PUU/CPVC stabilized stronger bonds.

Language: Английский

Citations

0
THE EFFECT OF CHEMICAL STRUCTURE OF VINYL CHLORIDE BASED POLYMERS ON ITS THE COMPATIBILITY WITH POLYURETHANEUREA ELASTOMER DOI
T. L. Malysheva, A. L. Tolstov,

O. V. Zinchenko

et al.

Polymer journal, Journal Year: 2024, Volume and Issue: 46(2), P. 103 - 110

Published: Aug. 7, 2024

The effect of the chemical structure vinyl chloride-based polymers, such as poly(vinyl chloride) (PVC), chlorinated PVC (cPVC), chloride/vinylidene chloride copolymer VCVD-40TM, chloride/vinyl acetate А-15TM on its compatibility with poly(ether-urethane)urea elastomer (PUU) was studied by DSC and FTIR spectroscopy. segmented PUU synthesized prepolymer approach in N,N-dimethylformamide (DMF) solution using poly(propylene glycol) number-averaged molecular weight (Mn) 1000 Da, 2,4-tolylenediisocyanate tolylene 2,4-diamine a chain extender at molar ratio 1:2:1. PUU/vinyl polymer blends prepared casting technique vie DMF solution. It found based containing 30 % (PUU/30PVC blend) or cPVC (PUU/30cPVC) were initiated strong hydrogen bonding. As result, are characterized single wide relaxation transition. A glass transition temperature (Тс) PUU/30PVC composite is similar to theoretical one (ТFс), which calculated Flory-Fox equation, whereas Тс value PUU/30cPVC higher than ТFс. Introducing polar vinylidene fragments into macrochains suppresses components initiates formation biphase microheterogeneous structure. intermolecular bonding network interface polymer-polymer confirmed Comparative analysis experimental theoretically (additive) tensile characteristics demonstrates their substantial dependence interactions between constituents. highest strengthening observed for PVC-containing nanocomposites.

Language: Английский

Citations

1