نتایج جستجو برای: situ polymerization

تعداد نتایج: 161839  

Journal: :Journal of Adhesion Science and Technology 2021

Waterborne poly(urethane urea)s (PUDs) containing graphene derivatives with different morphologies and surface polarities were synthesized via in situ polymerization by using the acetone method. Sm...

2014
Sandra Wilfert Helena Henke Wolfgang Schoefberger Oliver Brüggemann Ian Teasdale

A simple polymerization of trichlorophosphoranimine (Cl3 P = N-SiMe3 ) mediated by functionalized triphenylphosphines is presented. In situ initiator formation and the subsequent polymerization progress are investigated by (31) P NMR spectroscopy, demonstrating a living cationic polymerization mechanism. The polymer chain lengths and molecular weights of the resulting substituted poly(organo)ph...

2015
Stefan Naumann Johannes Klein Dongren Wang Michael R Buchmeiser

The polymerization of octamethylcyclotetrasiloxane (D4) is investigated using several five-, six- and seven-membered N-heterocyclic carbenes (NHCs). The catalysts are delivered in situ from thermally susceptible CO2 adducts. It is demonstrated that the polymerization can be triggered from a latent state by mild heating, using the highly nucleophilic 1,3,4,5-tetramethylimidazol-2-ylidene as orga...

Journal: :Biointerphases 2006
Hongwei Ma Marcus Textor Robert L Clark Ashutosh Chilkoti

This article reports that the kinetics of surface-initiated atom transfer radical polymerization can be quantified by the quartz crystal microbalance with dissipation (QCM-D) technique. The kinetics of in situ growth of poly(oligoethylene glycol methylmethacrylate) monitored on a gold-coated QCM-D sensor chip revealed that changes in the experimentally observed frequency (DeltaF) and dissipatio...

Journal: :Chemical Communications 2021

Porous, stable and functional MOF polymer hybrids can be prepared by the in situ polymerization of otherwise unstable soft crystals.

Journal: :Molecular Crystals and Liquid Crystals 2021

By mean of heterophase polymerization on the silica gel surface has been made in situ immobilization poly [8-methacroyloxy-quinoline], received new organic-mineral composite material. I...

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