Characteristics of crosslinked blends of Pellethene® and multiblock polyurethanes containing phospholipid

Yoo, Hyung Joun; Kim, Han‐Do

doi:10.1016/j.biomaterials.2004.09.001

Cited by 12 publications

(9 citation statements)

References 25 publications

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“…All the polymers in this study absorbed water. However, in comparison with PURs based on more hydrophilic polyols reported by other authors [51,52], those in this work were considered rather hydrophobic due to the hydrophobic nature of poly(e-caprolactone diol) [8]. The ability of polymers to absorb water is also affected by the range of macromolecular ordering.…”

Section: Discussionmentioning

confidence: 78%

Optimization of the structure of polyurethanes for bone tissue engineering applications

et al. 2010

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Section: Discussionmentioning

confidence: 78%

Optimization of the structure of polyurethanes for bone tissue engineering applications

et al. 2010

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“…After crosslinking with HMMM, water contact angles increased with increasing HMMM concentration, from 60 o to 65 o . This corresponded to a decrease in surface wettability [19]. The maximum contact angle was observed at the optimum HMMM content (8.46 wt%).…”

Section: Resultsmentioning

confidence: 90%

Properties of crosslinked waterborne polyurethane adhesives with modified melamine: Effect of curing time, temperature, and HMMM content

2009

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A series of crosslinked waterborne polyurethane (WBPU) adhesives were prepared by prepolymer synthesis. Modified melamine, hexamethoxymethyl melamine (HMMM) was used as the crosslinking agent. It was elucidated by FTIR and 1 H-NMR spectroscopy that the crosslinking reaction occurred between the polyurethane carboxyl acid salt groups and the HMMM methoxy groups. The hydrophobicity of the WBPU films increased after HMMM crosslinking. As the HMMM content was increased (increasing mole ratio of HMMM/dimethylol propionic acid (DMPA)), the water uptake (%) of the film decreased, and the water contact angle increased. The thermal stability, tensile strength, and initial modulus increased with increasing HMMM content up to an optimum value (mole ratio of HMMM/DMPA=0.5) at which point the maximum thermal stability, tensile strength, and initial modulus were recorded. The adhesive strength was found to be dependent on HMMM content, curing time, and temperature. The adhesive strength of crosslinked WBPU in the case of optimum HMMM content (8.46 wt%) was only slightly affected after immersing adhesive bonded nylon fabrics in water (for up to 2 days).

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“…In contact with aqueous environments, it is obviously favorable for hydrophilic constituents of the polymer to become enriched at the interface, (Vermette & Griesser, 2001). For crosslinked blends of Pellethene and multiblock polyurethanes containing phospholipids, (Yoo & Kim, 2005), it was found for elastic modulus values ranged between 21-47 MPa, whereas for biomaterials based on cross-linked blends of Pellethene and multiblock polyurethanes containing poly(ethylene oxide) it was found for elastic modulus values ranged between 85-246 MPa, (Yoo & Kim, 2004).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Natural-Based Polyurethane Biomaterials for Medical Applications

Macocinschi¹,

Filip²,

Vlad³

2011

Biomaterials Applications for Nanomedicine

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Characteristics of crosslinked blends of Pellethene® and multiblock polyurethanes containing phospholipid

Cited by 12 publications

References 25 publications

Optimization of the structure of polyurethanes for bone tissue engineering applications

Optimization of the structure of polyurethanes for bone tissue engineering applications

Properties of crosslinked waterborne polyurethane adhesives with modified melamine: Effect of curing time, temperature, and HMMM content

Natural-Based Polyurethane Biomaterials for Medical Applications

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