Recent Advances in Polyurethane for Artificial Vascular Application DOI Open Access

Hongjin Ji,

Xingzhen Shi,

Hongjun Yang

и другие.

Polymers, Год журнала: 2024, Номер 16(24), С. 3528 - 3528

Опубликована: Дек. 18, 2024

Artificial blood vessels made from polyurethane (PU) have been researched for many years but are not yet in clinical use. The main reason was that the PU materials prone to degradation after contact with and will also cause inflammation long-term implantation. At present, has progress biostability biocompatibility, respectively. artificial still requires a balance between material stability biocompatibility maintain its vivo, which needs be further optimized. Based on requirement of vascular applications, this paper views development biostable PU, bioactive bioresorbable PU. improvement monomer structure, chemical composition, additives discussed improve vivo. surface grafting functionalization methods reduce thrombosis promote endothelialization improving summarized. In addition, tissue-engineered is rate mechanical properties. ideal must good properties, stability, at same time. Finally, application potential prospected.

Язык: Английский

Advances in the degradation and recycling of polyurethanes: biodegradation strategies, MALDI applications, and environmental implications DOI
Joanna Drzeżdżon, Janusz Datta

Waste Management, Год журнала: 2025, Номер 198, С. 21 - 45

Опубликована: Фев. 27, 2025

Язык: Английский

Процитировано

1

A Novel Polyurethane Microcapsule Coated with Polyacrylamide Using D-Sorbitol as Chain Extender for Enhanced Oil Recovery DOI

Yaowei Wu,

Zuming Jiang,

Y. Wang

и другие.

Опубликована: Янв. 1, 2025

Polyacrylamide(PAM) is a common oil flooding agent with excellent thickening ability. However, the application of PAM faces challenge viscosity loss during formation transportation and cannot meet expectations recovery in fields. To solve this problem, polyurethane was selected for microencapsulation through simple emulsion polymerization method work. It worth mentioning that non-toxic renewable D-sorbitol used as chain extender synthesis microcapsules instead commonly diols or diamines obtained from non-renewable petroleum resources, which has not been reported previous reports. Mechanical stirring to simulate state polymer subjected shear stratigraphic transport. The releasing performance characterized by measuring change time. Meanwhile, we optimized ratio achieve longest release Experiments showed feasible preparation polyurethane, prepared at concentration 8% solution had slow-release time 75 h 25 oC 500 rpm. We also samples BDO comparison, experiments SO8 longer can better demand. exhibited resistance heat resistance, attributed rigidity high cross-linking density brought about hard segment polyurethane. These PAM-containing promising enhancing recovery.

Язык: Английский

Процитировано

0

Biphasic Aromatic Amine-Cured Polybutadiene Polyurethane-Ureas for Simultaneous Bonding of Materials with Different Polarities DOI

Zhaoran Xu,

Pengfei Shen, Kefeng Wang

и другие.

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

In this study, aromatic amine curing agents (A-HD, A-NPG, and A-DCP) were synthesized through the Michael addition of 3-aminobenzylamine with 1,6-hexanediol diacrylate, neopentyl glycol octahydro-1H-4,7-methanoindene-1,5-diyldimethanediyl bisprop-2-enoate, respectively. The incorporation these into low-polarity polybutadiene polyurethane-ureas balanced polar dispersion components surface energy, enhancing simultaneous bonding performance materials different polarities. Atomic force microscopy revealed that prepared exhibited a significant microphase separation between soft hard segments. segments facilitated to materials, while isocyanate enabled effective adhesion materials. Moreover, viscosity pot life polyurethane-urea mixture can be controlled modulation intermediate structures agents. sample PU-DCP achieved highest shear strength 4.36 MPa steel sheets (a material) styrene-butadiene rubber material). This was 39% 53% higher than those cured commonly used 4,4'-methylene bis(2-chloroaniline) (MOCA) dimethyl thio-toluene diamine (E300). paper presents method achieve phase-separated structure in polyurethanes.

Язык: Английский

Процитировано

0

Recent Progress on Bio-based Polyurethanes: Synthesis, Structure and Cutting-Edge Applications DOI

Yunran Zhang,

Hui Dong,

Wenjie Yang

и другие.

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 112279 - 112279

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

A novel polyurethane microcapsule coated with polyacrylamide using D-sorbitol as chain extender for enhanced oil recovery DOI

Yaowei Wu,

Zuming Jiang,

Y. Wang

и другие.

Journal of Polymer Research, Год журнала: 2025, Номер 32(6)

Опубликована: Июнь 1, 2025

Язык: Английский

Процитировано

0

Recent Advances in Polyurethane for Artificial Vascular Application DOI Open Access

Hongjin Ji,

Xingzhen Shi,

Hongjun Yang

и другие.

Polymers, Год журнала: 2024, Номер 16(24), С. 3528 - 3528

Опубликована: Дек. 18, 2024

Artificial blood vessels made from polyurethane (PU) have been researched for many years but are not yet in clinical use. The main reason was that the PU materials prone to degradation after contact with and will also cause inflammation long-term implantation. At present, has progress biostability biocompatibility, respectively. artificial still requires a balance between material stability biocompatibility maintain its vivo, which needs be further optimized. Based on requirement of vascular applications, this paper views development biostable PU, bioactive bioresorbable PU. improvement monomer structure, chemical composition, additives discussed improve vivo. surface grafting functionalization methods reduce thrombosis promote endothelialization improving summarized. In addition, tissue-engineered is rate mechanical properties. ideal must good properties, stability, at same time. Finally, application potential prospected.

Язык: Английский

Процитировано

0