Results 231 to 240 of about 74,560 (387)

High Molar Mass Non‐Isocyanate Polyurethanes by Transurethanization of Diols with Isophorone‐Based Bismethylcarbamate

open access: yesMacromolecular Chemistry and Physics, EarlyView.
High molar mass polyurethanes are achieved using potassium carbonate (K2CO3) as a catalyst, confirming that the polytransurethanization route is a good alternative to the isocyanate one. Abstract The synthesis of thermoplastic polyurethanes (TPU) has been associated with sustainability issues, prompting the development of alternative synthesis routes ...
Nichollas G. Jaques   +5 more
wiley   +1 more source

Investigation of the Mechanical Behaviors of Waterborne Polyurethane: The Critical Influence of Hard Segment Content Over Various Strain Rates

open access: yesMacromolecular Materials and Engineering, EarlyView.
This study explores how hard segment content (HS) modulates waterborne polyureathane's (WPU's) dynamic mechanical properties under low/high strain rates. Increasing HS enhances hydrogen bonding and microphase separation, with abundant hard domains acting as physical crosslinks.
Mingping Zhou   +8 more
wiley   +1 more source

On‐Resin Recycling of Acid‐Labile Linker Enables the Reuse of Solid Support for Fmoc‐Based Solid Phase Synthesis

open access: yesMacromolecular Rapid Communications, EarlyView.
This study introduces the first recyclable and reusable resin for Fmoc‐based solid phase synthesis (SPS) of oligamide‐based structures through the regeneration of a cyclic acetal‐based linker on Tentagel resins. Even after multiple recycling and reuse cycles of the solid phase, consistently high yields and high‐purity products are obtained. Abstract In
Nicholas Jäck, Laura Hartmann
wiley   +1 more source

Multiple insecticide resistance in Anopheles funestus from Mopeia, Central Mozambique. [PDF]

open access: yesMalar J
Kiuru C   +10 more
europepmc   +1 more source

Studies on Carbamates. VIII. The Carbamates of Benzylamine, Piperidine and Aniline. [PDF]

open access: yesActa Chemica Scandinavica, 1952
Arne Jensen   +2 more
openaire   +2 more sources

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