Surface characteristics of polyurethane elastomers based on chitin/1,4-butane diol blends

Zia, Khalid Mahmood; Barikani, Mehdi; Zuber, Mohammad; Bhatti, Ijaz Ahmad; Barmar, Mohammad

doi:10.1016/j.ijbiomac.2008.12.004

Cited by 36 publications

(10 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indirectly supports the proposed interaction, where the surface of the PUF can be altered with organic solvent for further enhancement. The treatment of PUF with ethanol might be responsible in removing oligomers with low molecular weight in the soft segments [26]. The removal of some of the soft segments resulted in the exposure of the hard segment towards Fe-Si.…”

Section: Impregnation Of Fe-si Onto Pufmentioning

confidence: 99%

Green Flexible Polyurethane Foam as a Potent Support for Fe-Si Adsorbent

et al. 2019

View full text Add to dashboard Cite

This paper describes the preparation, characterisation, and potential application of flexible palm oil-based polyurethane foam (PUF) as a support for iron-silica (Fe-Si) adsorbent. Fe-Si/polyurethane composite (Fe-Si/PUC) was prepared by impregnating Fe-Si adsorbent onto the surface of PUF by using a novel immersion-drying method. Morphological analysis of Fe-Si/PUC proved that Fe-Si was successfully impregnated onto the surface of PUF. Compression test and thermogravimetric analysis were carried out to determine the flexibility and thermal stability of Fe-Si/PUC, respectively. The Fe-Si/PUC removed 90.0% of 10 ppm methylene blue (MB) from aqueous solution in 60 min. The reusability study showed that Fe-Si/PUC removed 55.9% of MB on the seventh cycle. Hence, the synthesis of Fe-Si/PUC opens up a new path of implementing palm oil-based PUF to assist in the recovery of an adsorbent for environmental clean-up. The mechanism of physical interaction during the impregnation of Fe-Si adsorbent onto PUF was proposed in this paper.

show abstract

Section: Impregnation Of Fe-si Onto Pufmentioning

confidence: 99%

Green Flexible Polyurethane Foam as a Potent Support for Fe-Si Adsorbent

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The importance of chitin suture materials is on the increase as can be witnessed by several publications [78,[273][274][275][276][277][278][279][280]. Biodegradable polyurethane (PU) elastomers with potential for biomedical application as nonabsorbable sutures with improved hydrophobic properties were synthesized by modification of chitin by the reaction of CL and 4,4 0diphenylmethane diisocyanate, extended with different mass ratios of chitin and/or 1,4-butanediol (BDO) [280]. The results of different tests demonstrated that the synthesized products are potential candidates as nonabsorbable sutures as previously investigated into their in vitro biocompatibility and nontoxicity [281][282][283][284].…”

Section: Sutures Based On Chitinmentioning

confidence: 99%

Review Paper: Absorbable Polymeric Surgical Sutures: Chemistry, Production, Properties, Biodegradability, and Performance

2010

View full text Add to dashboard Cite

Among biomaterials used as implants in human body, sutures constitute the largest groups of materials having a huge market exceeding $1.3 billion annually. Sutures are the most widely used materials in wound closure and have been in use for many centuries. With the development of the synthetic absorbable polymer, poly(glycolic acid) (PGA) in the early 1970s, a new chapter has opened on absorbable polymeric sutures that got unprecedented commercial successes. Although several comparative evaluations of suture materials have been published, there were no serious attempts of late on a comprehensive review of production, properties, biodegradability, and performance of suture materials. This review proposes to bring to focus scattered data on chemistry, properties, biodegradability, and performance of absorbable polymeric sutures.

show abstract

“…39 On the other hand, polar components and electron acceptor parameters take lower values, which can be explained by the fact that, in the casting ternary system (CAP/HPC/DMAc) used for obtaining films, besides the polymer/solvent interaction, a polymer/polymer/solvent interaction also occurs. 24 These interactions could affect the rearrangement of macromolecules in solution and, implicitly, the surface tension parameters of CAP/HPC films.…”

Section: Resultsmentioning

confidence: 99%

Biocidal activity of cellulose materials for medical implants

Onofrei¹,

Dobos²,

Dunca

et al. 2015

J of Applied Polymer Sci

View full text Add to dashboard Cite

Surface wettability trends, and blood component adhesion of some cellulose acetate phthalate/hydroxypropyl cellulose blend films are analyzed in view of adapting the system to biomedical applications. The results show that intermediate blend compositions of the corresponding films influence the surface tension parameters-controlled by the interactions occurring in the system. Increasing hydrophobicity and, implicitly, decreasing the polar surface tension components, are correlated with the adhesion/cohesion of blood components and plasma proteins. Thus, the work of spreading proteins on the hydrophobic blend surfaces indicated that albumin is not absorbed preferentially, while fibrinogen is characterized by a higher degree of adhesion on the surfaces, and also that selective adsorption of plasma proteins modifies blood compatibility. In addition, the obtained results and the ascertained antimicrobial activity of the studied blends contribute to the development of new applications in the biomedical field.

show abstract

Surface characteristics of polyurethane elastomers based on chitin/1,4-butane diol blends

Cited by 36 publications

References 30 publications

Green Flexible Polyurethane Foam as a Potent Support for Fe-Si Adsorbent

Green Flexible Polyurethane Foam as a Potent Support for Fe-Si Adsorbent

Review Paper: Absorbable Polymeric Surgical Sutures: Chemistry, Production, Properties, Biodegradability, and Performance

Biocidal activity of cellulose materials for medical implants

Contact Info

Product

Resources

About