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
Co-poly(urethane-imide)s based on poly[di(ethylene glycol) adipate] and their compositions with thermoplastic polyimide: synthesis and properties
Sign Up to like & getrecommendations! Published in 2020 at "Russian Chemical Bulletin"
DOI: 10.1007/s11172-020-2769-8
Abstract: Based on poly[di(ethylene glycol) adipate] ( M n = 2500) terminated by 2,4-toluene diiso-cyanate (TDI), bis(3´,4-dicarboxyphenoxy)benzene (dianhydride R), and 1,4-bis(4´-amino-phenoxy)biphenyl (diamine ODFO) a number of co-poly(urethane-imide) samples with the general formula (R-TDI-2500-TDI-R)(ODFO) n ( n… read more here.
Keywords: based poly; urethane imide; poly ethylene; ethylene glycol ... See more keywords
Poly urethane mixed matrix membranes for propylene and propane separation
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Papers"
DOI: 10.1007/s11696-018-0386-x
Abstract: In this study, a dense mixed matrix membrane based on polyether ester urethane was fabricated using solution casting and dry phase inversion method. The mixed matrix membranes containing non-porous silica mineral nanoparticles, 4A zeolite nanoparticles,… read more here.
Keywords: propylene propane; matrix; mixed matrix; separation ... See more keywords
A waterborne uniform graphene-poly(urethane-acrylate) complex with enhanced anticorrosive properties enabled by ionic interaction
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2018.06.151
Abstract: Abstract Homogeneous dispersion of graphene (GR) in waterborne polymer matrix still remains a challenge. In this work, a novel strategy to prepare waterborne graphene/polymer nanocomposite of high uniformity and stability is developed via in situ… read more here.
Keywords: urethane acrylate; graphene; cgr wpua; poly urethane ... See more keywords
Soft segment length controls morphology of poly(ethylene oxide) based segmented poly(urethane-urea) copolymers in a binary solvent
Sign Up to like & getrecommendations! Published in 2017 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2017.06.018
Abstract: Abstract It is known that morphology and structure-property behavior of poly(ethylene oxide) (PEO) based poly(urethane-urea) copolymers are affected by soft segment (SS) chain length. Here, a multi-scale computational study is carried out to determine the… read more here.
Keywords: length; segment; ethylene oxide; morphology ... See more keywords
Thermoplastic poly(urethane-thiourethane) triblock copolymers with SWCNTs composite
Sign Up to like & getrecommendations! Published in 2019 at "Diamond and Related Materials"
DOI: 10.1016/j.diamond.2019.01.018
Abstract: Abstract Poly(urethane-thiourethane) triblock copolymer nanotube composites have been synthesized by reacting hexamethyl diisocyanate, polyethylene glycol, chain extended with two different diols 3,6-dioxa-1,8-octanedithiol (DODT), 3,7-dithia-1,9-nonanedithiol (DTDT) and different weight percentage of single-walled carbon nanotubes (SWCNTs). The… read more here.
Keywords: poly urethane; triblock copolymers; thiourethane triblock; urethane thiourethane ... See more keywords
Thermoreversible gelation of poly(urethane acyl-semicarbazides) carrying cycloaliphatic moieties and studies on selective adsorption of dyes from wastewater
Sign Up to like & getrecommendations! Published in 2018 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2017.12.011
Abstract: Abstract A series of linear segmented poly(urethane acyl- semicarbazides) of different compositions were synthesized from polypropylene glycol (M n ∼ 1000 and 2000), hexamethylene diisocyanate and cyclohexanedicarboxylic acid 1,4 dihydrazide. The polymers exhibited thermoreversible gelation at… read more here.
Keywords: gelation; urethane acyl; acyl semicarbazides; poly urethane ... See more keywords
How broadly can poly(urethane)-based implants be applied to drugs of varied properties?
Sign Up to like & getrecommendations! Published in 2019 at "International journal of pharmaceutics"
DOI: 10.1016/j.ijpharm.2019.118550
Abstract: Implants offer the opportunity to improve patient adherence and real-world outcomes. However, most polymers used today are hydrophobic and limit drug properties suitable for development. Thermoplastic poly(urethanes) (TPUs) form pores upon hydration and may facilitate… read more here.
Keywords: tpu membranes; rich tpu; broadly poly; drug ... See more keywords
Optical and encapsulation properties of La(OH)3/poly(urethane acrylate) composites
Sign Up to like & getrecommendations! Published in 2020 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2020.123281
Abstract: Abstract Two lanthanum hydroxide (LH, La(OH)3) materials, i.e., La(OH)3 submicroplates (LHSMPs) and La(OH)3 nanoparticles (LHNPs), were synthesized hydrothermally, and their optical and encapsulation properties were investigated. The surfaces of the LHSMPs and the LHNPs were… read more here.
Keywords: optical encapsulation; urethane acrylate; encapsulation properties; poly urethane ... See more keywords
Facile synthesis of a novel hyperbranched poly(urethane-phosphine oxide) as an effective modifier for epoxy resin
Sign Up to like & getrecommendations! Published in 2018 at "Polymer Degradation and Stability"
DOI: 10.1016/j.polymdegradstab.2018.05.021
Abstract: Abstract In this work, a novel hyperbranched poly (urethane-phosphine oxide) (HPUPO) was facilely synthesized from 4,4′-diphenylmethane diisocyanate and trihydroxymethylphosphine oxide at room temperature. When HPUPO was incorporated, flame retardancy and toughness of epoxy resin are… read more here.
Keywords: resin; epoxy resin; hpupo; hyperbranched poly ... 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