Mechanical properties and hydrolytic stability of polyesterurethane elastomers with alkyl side groups

Furukawa, Mutsuhisa; Shiiba, Taichi; Murata, Shigeru

doi:10.1016/s0032-3861(98)00262-6

Cited by 44 publications

(22 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The flexibility of the final elastomer will depend on the nature of the flexible segments with low glass transition, while the mechanical strength will be A. Sánchez-Ferrer, D. Rogez, P. Martinoty given by the hard segments with high melting points (for thermoplastic block copolymers) [42] or the number of crosslinking points (for polymer networks).…”

Section: Mechanical and Swelling Properties Of Polyetherurea Elastomersmentioning

confidence: 99%

Synthesis and Characterization of New Polyurea Elastomers by Sol/Gel Chemistry

Sánchez‐Ferrer

Rogez

Martinoty

2010

Macro Chemistry & Physics

View full text Add to dashboard Cite

A series of elastomers based on polyurea chemistry is synthesized by crosslinking amino‐terminated polyethers with a triisocyanate using an appropriate solvent, which slowed down the reactivity of the amino groups. Control of the reactivity allows the shaping of the material, and films of defined thickness can be achieved for mechanical testing. The strength of the final network can be tuned by the crosslinking density of the network chemical constitution. The resulting materials show a good thermal stability and promising mechanical enhancement.magnified image

show abstract

Section: Mechanical and Swelling Properties Of Polyetherurea Elastomersmentioning

confidence: 99%

Synthesis and Characterization of New Polyurea Elastomers by Sol/Gel Chemistry

Sánchez‐Ferrer

Rogez

Martinoty

2010

Macro Chemistry & Physics

View full text Add to dashboard Cite

show abstract

“…Furukawa et al 9 also reported that PUs derived from a branched diol, such as 3-methyl-1,5-pentanediol, showed improved hydrolysis resistance. Recently, Murata et al 10 and Furukawa et al 11 reported that the PEPO derived from a branched diol having two ethyl groups, such as 2,4-diethyl-1,5-pentane diol, had enough practical hydrolysis resistance.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of hydrolytic stability and adhesion of waterborne polyurethanes

Kim

2005

J of Applied Polymer Sci

View full text Add to dashboard Cite

ABSTRACT:A new type of polyester polyol, with alkyl side groups, viz. poly(2,4-diethyl-1,5-pentamethylene adipate) glycol (PDPAd) was synthesized and used to improve the hydrolytic stability of waterborne polyurethanes (PU). The results compared favorably with poly(tetramethylene adipate) glycol (PTAd)-based PU and blends of the two types of PU in terms of particle size, thermal, XRD, mechanical, dynamic mechanical, and swell behavior of the dispersion cast films in addition to hydrolytic stability and adhesion properties. Blends of PTAd-based PU and PDPAdbased PU gave significantly improved green (immediate) adhesion and hydrolytic stability due to the synergistic effects of crystallinity (heat of crystallization, high density) and amorphous regions (tack, high thermal stability).

show abstract

“…The mechanical strength of this structure can be attributed to hard microdomains physically cross-linked through hydrogen bonding and dispersion forces, which act as a filler-like reinforcement for the soft segment [5]. The factors that influence microphase separation includes composition, chain length of soft and hard segments, symmetry of diisocyanates, thermal history and so on [6][7][8][9][10][11][12][13]. Studies were already reported regarding the thermal and mechanical properties of the PU-Urea coatings on various surfaces like wood, metal and silica, showed that the performance heavily depended on the surface energy of the substrate.…”

Section: Introductionmentioning

confidence: 99%

Structure and mechanical behaviors of thermoplastic polyurethane thin film coated polyamide 6 fibers part II. A solution coating method

John

Furukawa

2012

J Polym Res

Self Cite

View full text Add to dashboard Cite

Thermoplastic polyurethane thin film (TPU) coated PA6 fibers were prepared by dipping fibers into a TPU solution. The thickness of the thin film coating was 20 μ m. A series of polymer glycols which include polycarbonate, polyether and polyester were used for the preparation of the TPU. Both tensile strength and elongation at break of the TPU coated fibers increased although both magnitudes of the TPUs are much lower than for the original PA6 fibers. Also there was a significant improvement in the abrasion resistance TPU coated PA6 fibers. The PA6 fibers are prone to micro-cracks when under mechanical stress but the TPU thin film coating delayed the formation of the micro-cracks, thereby improving the mechanical properties of PA6 fibers. The theoretical investigation on the effect of interface interaction region using the viscous flow model described could clearly explain the effect of the same on the mechanical performance of TPU coated PA6 fibers.

show abstract

Mechanical properties and hydrolytic stability of polyesterurethane elastomers with alkyl side groups

Cited by 44 publications

References 8 publications

Synthesis and Characterization of New Polyurea Elastomers by Sol/Gel Chemistry

Synthesis and Characterization of New Polyurea Elastomers by Sol/Gel Chemistry

Enhancement of hydrolytic stability and adhesion of waterborne polyurethanes

Structure and mechanical behaviors of thermoplastic polyurethane thin film coated polyamide 6 fibers part II. A solution coating method

Contact Info

Product

Resources

About