Thermal stability and decomposition behaviors of segmented copolymer poly(urethane-urea-amide)
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Polymer Research"
DOI: 10.1007/s10965-018-1634-z
Abstract: Polyurethane (PU) has become one of the most important segmented copolymers, due to it can be tailored to suit a wide range of application requirements by changing their structures and compositions. Amide, urethane and urea,… read more here.
Keywords: urethane urea; poly urethane; stability; decomposition behaviors ... See more keywords
Molecular influence in high-strain-rate microparticle impact response of poly(urethane urea) elastomers
Sign Up to like & getrecommendations! Published in 2017 at "Polymer"
DOI: 10.1016/j.polymer.2017.06.071
Abstract: Abstract The dynamic deformation response of select model poly(urethane urea) elastomers (PUU) at high strain rates is investigated via an all-optical laser-induced projectile impact test (LIPIT). LIPIT measurements allow the direct visualization of the impact… read more here.
Keywords: response; urethane urea; high strain; impact ... See more keywords
Flexible aromatic disulfide monomers for high-performance self-healable linear and cross-linked poly(urethane-urea) coatings
Sign Up to like & getrecommendations! Published in 2019 at "Polymer"
DOI: 10.1016/j.polymer.2019.02.001
Abstract: Abstract Implementation of the self-healing concept in coatings is challenging because they have to combine mechanical strength and chain mobility. This challenge is addressed in this work by studying the effect of the polymer microstructure… read more here.
Keywords: poly urethane; urea coatings; urethane urea; aromatic disulfide ... See more keywords
Double Modification of Poly(urethane-urea): Toward Healable, Tear-Resistant, and Mechanically Robust Elastomers for Strain Sensors.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c18397
Abstract: Polyurethane elastomers with mechanical robustness, tear resistance, and healing efficiency hold great potential in wearable sensors and soft robots. However, achieving excellent mechanical properties and healable capability simultaneously remains highly desirable but exclusive. Herein, we… read more here.
Keywords: puu; strain sensors; poly urethane; modification poly ... See more keywords
End-Terminated Poly(urethane–urea) Hybrid Approach toward Nanoporous/Microfilament Morphology
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c06888
Abstract: In the present work, the effect of heteroatomic hydrogen bonding on the properties of −OH/–NH-terminated soft-segment-free polymers, viz, polyurethane (P-UT), polyurea (P-UR), and their hybrid (P-UT–UR), is explored. P-UT was synthesized from phloroglucinol and P-UR… read more here.
Keywords: poly urethane; structure; terminated poly; end terminated ... See more keywords
Structure and adhesion properties of waterborne poly(urethane urea)s containing small amounts of different graphene derivatives
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Adhesion Science and Technology"
DOI: 10.1080/01694243.2021.1970371
Abstract: Waterborne poly(urethane urea)s (PUDs) containing graphene derivatives with different morphologies and surface polarities were synthesized via in situ polymerization by using the acetone method. Sm... read more here.
Keywords: structure adhesion; urethane urea; poly urethane; graphene derivatives ... See more keywords
Biodegradable poly(urethane-urea-amide): Synthesis, characterization and mechanical studies
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Thermoplastic Composite Materials"
DOI: 10.1177/0892705720963537
Abstract: Biodegradable polyurethane with excellent mechanical property finds a lot of applications in the biomedical field. In this study, multi block copolymer poly(urethane-urea-amide) (PUUA) is prepared using polyethylene oxide, 1,6-hexamethylene diisocyanate and diamide (N1, N4-bis(6-aminohexyl)benzene-1,4-dicarboxamide (6T6)… read more here.
Keywords: urethane urea; biodegradable poly; hard segment; poly urethane ... See more keywords
Excellent Toughening of 2,6-Diaminopyridine Derived Poly (Urethane Urea) via Dynamic Cross-Linkages and Interfering with Hydrogen Bonding of Urea Groups from Partially Coordinated Ligands
Sign Up to like & getrecommendations! Published in 2019 at "Polymers"
DOI: 10.3390/polym11081320
Abstract: Conventional approaches to synthesize thermoplastic polyurethane (TPU) with excellent robustness are limited by a competing relationship between soft and hard segments for tuning mechanical properties in terms of chain flexibility and micro-phase separation. Herein, we… read more here.
Keywords: cross linkages; urethane urea; cross; dynamic cross ... See more keywords