نتایج جستجو برای: modified poly ethylene terephthalate grafted acrylicacidacryl amide nano fiberpet aaaam

تعداد نتایج: 420447  

Journal: :journal of particle science & technology 2015
omid moini jazani mohammad ali khoramabadi mohammad mahdi salehi hossein riazi fariba soltanokottabi

in this work, ternary polymer blends based on polypropylene (pp)/ polyethylene terephthalate (pet) /poly(styrene-b (ethylene-co-butylene)-b-styrene) (sebs) triblock copolymer and a reactive maleic anhydride grafted sebs (sebs-g-mah) at various compositions were prepared by co-rotating twin screw extruder. the effects of pet, sebs and sebs-g-mah compatibilizer on morphology of the blends were ex...

1999
D. M. Price

By employing a “modulated-temperature” heating programme composed of a series of heat-isotherm stages, it is possible to separate the change in dimensions of an oriented material during heating into two contributions: a thermally “reversing” component which is due to linear thermal expansion and a “nonreversing” part arising from relaxation to the disordered state on heating above Tg . Some pre...

Journal: :International Journal of Biological Macromolecules 2021

Poly(ethylene terephthalate) hydrolase (PETase) from Ideonella sakaiensis 201-F6 was expressed and purified Escherichia coli to hydrolyze poly(ethylene (PET) fibers waste for its monomers recycling. Hydrolysis carried out at pH 8 30 °C found be the optimal condition based on measured monomer mono(2-hydroxyethyl) terephthalate (MHET) terephthalic acid (TPA) concentrations after 24 h reaction. Th...

2012
Sebastian Rauch Klaus-Jochen Eichhorn Ulrich Oertel Manfred Stamm Dirk Kuckling Petra Uhlmann

Here, we report on a new temperature responsive polymer brush system with a terminal ‘‘click’’ functionality. Bifunctionalized poly(N-isopropylacrylamide) (PNiPAAm) with distinct functional end groups was synthesized by atom transfer radical polymerization (ATRP) and grafted to a modified silicon substrate. The presence of the active terminal alkyne functionality is validated using an azidemodi...

2014
Gang Guo Qiwu Shi Yanbing Luo Rangrang Fan Liangxue Zhou Zhiyong Qian Jie Yu

This study investigated ageing-resistant properties of carboxyl-terminated polyester (polyethylene glycol terephthalate) composites modified with nanoscale titanium dioxide particles (nano-TiO2). The nano-TiO2 was pretreated by a dry coating method, with aluminate coupling agent as a functional grafting additive. The agglomeration resistance was evaluated, which exhibited significant improvemen...

Journal: :The journal of physical chemistry. C, Nanomaterials and interfaces 2010
Eleonora V Shtykova Andrey Malyutin Jason Dyke Barry Stein Peter V Konarev Bogdan Dragnea Dmitri I Svergun Lyudmila M Bronstein

Aqueous solutions of iron oxide nanoparticles (NPs) stabilized by poly(maleic acid-alt-1-octadecene) (PMAcOD) modified with the 5,000 Da poly(ethylene glycol) (PEG) or the short ethylene glycol (EG) tails were analyzed by small-angle X-ray scattering (SAXS). Advanced SAXS data analysis methods were employed to systematically characterize the structure and interactions between the NPs. Depending...

In this work, ternary polymer blends based on polypropylene (PP)/ polyethylene terephthalate (PET) /poly(styrene-b (ethylene-co-butylene)-b-styrene) (SEBS) triblock copolymer and a reactive maleic anhydride grafted SEBS (SEBS-g-MAH) at various compositions were prepared by co-rotating twin screw extruder. The effects of PET, SEBS and SEBS-g-MAH compatibilizer on morphology of the blends were ex...

Journal: :Molecules 2014
Aoife O'Connor Jean-Noel Marsat Annachiara Mitrugno Tom Flahive Niamh Moran David Brayden Marc Devocelle

Polymer-peptide conjugates are a promising class of compounds, where polymers can be used to overcome some of the limitations associated with peptides intended for therapeutic and/or diagnostic applications. Linear polymers such as poly(ethylene glycol) can be conjugated through terminal moieties and have therefore limited loading capacities. In this research, functionalised linear poly(ethylen...

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