Investigation of soft segments of thermoplastic polyurethane by NMR, differential scanning calorimetry and rebound resilience

Voda, Alexandra; Beck, Klaus; Schauber, Thomas; Adler, Matthias; Dabisch, Thomas; Bescher, Martin; Viol, Michael; Demco, Dan E.; Blümich, Bernhard

doi:10.1016/j.polymertesting.2005.10.007

Cited by 37 publications

(30 citation statements)

References 24 publications

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“…According to the literature, the increasing of the molecular weight of SS building blocks leads to decrease of their glass transition temperature, and result in better phase separation within the material and purer phases are formed. Voda et al obtained TPUs using polyols with different molecular weight M n (550, 1,250, 2,000, and 3,000 g/mol) and the glass transition of the SSs was 10.4°C, −17.5°C, −31.5°C, and −50.6°C, respectively .…”

Section: Thermoplastic Poly(ester‐urethane)smentioning

confidence: 99%

Thermoplastic polyurethanes derived from petrochemical or renewable resources: A comprehensive review

Datta

Kasprzyk

2017

Polymer Engineering & Sci

115

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Thermoplastic polyurethanes (TPUs) materials are obtained by the reaction of polyol (ether-, ester-, and carbonate-based diols with average molecular weight in the range from 1,000 to 3,000 g/mol) with aliphatic or aromatic diisocyanates. Synthesized materials consist of the hard and soft segments which are separated in different level. All mechanical and thermal properties of TPUs depend on the chemical structure of used monomers, volume fraction, and interaction between the hard and soft segments. Presented work is the review of the synthesis and the structure-properties relationship analysis in the case of TPU. The most popular reactants used for the production of the TPUs have petrochemical-based origin.

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Section: Thermoplastic Poly(ester‐urethane)smentioning

confidence: 99%

Thermoplastic polyurethanes derived from petrochemical or renewable resources: A comprehensive review

Datta

Kasprzyk

2017

Polymer Engineering & Sci

115

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“…The structure of SS is very similar to poly(ethylene oxide) and hence we accept proton density for mobile phase to be equal to 0.103 g/cm 3 [19] (Table 3).…”

Section: Nmr Experimentsmentioning

confidence: 99%

“…For the transformation of spin-diffusion data into reliable information about spatial structure of PU the spin-diffusion coefficients must be known. The diffusion coefficient of the rigid phase (D B ) can be calculated from the following equation that is valid for the Gaussian line shape [19]:…”

Section: Nmr Experimentsmentioning

confidence: 99%

Rigid phase domain sizes determination for poly(urethane–urea)s by solid-state NMR spectroscopy. Correlation with mechanical properties

Мокеев

Zuev

2015

European Polymer Journal

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“…It is used to probe the glass transitions in hard segments and soft segments [9,10]. Different forms including thermoplastic PU [11,12], caster oil-based PU [13], poly(ester-siloxane)urethanes [14] and PU foam [15] have been studied by DSC. Furthermore, the effect of metal on the glass transition of PU has been reported [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cobalt Ferrite Loading on Differential Scanning Calorimetry of Magnetic Polymer Composites

Khongtong

Hunyek

Sirisathitkul

2015

Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci.

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Effects of magnetic cobalt ferrite (CoFe 2 O 4 ) on thermal properties of polypropylene (PP), polyurethane (PU) and natural rubber (NR) matrices were studied by differential scanning calorimetry. The endothermic peak area of PP was reduced with increasing loading of CoFe 2 O 4 from 0 to 45 % and such peak in semicrystalline PU was entirely absent when the CoFe 2 O 4 loading was over 25 part per hundred rubber. The results indicated that magnetic clusters embedded at the interchain spacing inhibited the nucleation of order segments in polymer matrix. The presence of CoFe 2 O 4 particles also had influence on the mobile amorphous portions of PU chains with polar functional group. No endothermic evidence on the thermograms of non-polar amorphous NR was observed.

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Investigation of soft segments of thermoplastic polyurethane by NMR, differential scanning calorimetry and rebound resilience

Cited by 37 publications

References 24 publications

Thermoplastic polyurethanes derived from petrochemical or renewable resources: A comprehensive review

Thermoplastic polyurethanes derived from petrochemical or renewable resources: A comprehensive review

Rigid phase domain sizes determination for poly(urethane–urea)s by solid-state NMR spectroscopy. Correlation with mechanical properties

Effect of Cobalt Ferrite Loading on Differential Scanning Calorimetry of Magnetic Polymer Composites

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