Results 161 to 170 of about 12,785 (258)

Kinetics of ε‐Caprolactone Ring Opening Polymerization: Experimental and Modeling Study

open access: yesJournal of Polymer Science, EarlyView.
We present a multi‐scale model for the ring‐opening polymerization of ε‐caprolactone to polycaprolactone (PCL), approximating final melt properties. We conducted batch experiments at various temperatures and reactant ratios. Using this data, we determined the kinetic parameters.
Jakub Staś   +6 more
wiley   +1 more source

Viscoelastic Modeling of Stress Relaxation in Model High‐Performance Covalent Adaptable Networks

open access: yesJournal of Polymer Science, EarlyView.
Covalent adaptable networks, often referred to as vitrimers, contain a certain fraction of bonds that are able to exchange with other bonds. The ability of this bond exchange to relax stress or result in flow of the material depends on the concentration and specific concentration of these bonds in ways that can be quantified.
Broderick Lewis   +4 more
wiley   +1 more source

Evaluation of Self-healing Performance of Aging Asphalt Based on Dynamic Shear Rheometer

open access: yesDEStech Transactions on Engineering and Technology Research, 2018
Hongzhou Zhu, Shan Gou, Shiping Fan
openaire   +2 more sources

Comparative Evaluation of Large Amplitude Oscillatory Shear (LAOS) Analysis Methods for Detecting Surfactant‐Induced Structural Evolution in Xanthan Gum Solutions

open access: yesJournal of Polymer Science, EarlyView.
A comparative large‐amplitude oscillatory shear analysis reveals how cationic surfactants progressively weaken xanthan gum networks. While conventional rheology identifies network softening, advanced LAOS methods uncover nonlinear deformation mechanisms and transient structural evolution that remain hidden in cycle‐averaged measurements.
Osita Sunday Nnyigide   +2 more
wiley   +1 more source

BODIPY Photocage‐Based Injectable Hydrogel for Light‐Controlled Nanoparticle Release

open access: yesSmall, EarlyView.
This work presents an injectable hydrogel formulation which undergoes efficient photodegradation under green light irradiation. The gel can be easily injected to subcutaneous tissue through 23G needles, co‐encapsulate and photo‐release nanoparticles as well as exhibits excellent biocompatibility, making it promising for the development of light ...
Baihao Shao   +8 more
wiley   +1 more source

Strain amplitude sweep testing of oscillatory shear of transient networks with controlled network structures. [PDF]

open access: yesSci Technol Adv Mater
Sato R   +8 more
europepmc   +1 more source

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