Results 31 to 40 of about 482,977 (308)

مروری بر کامپوزیت‌های پلیمر-سیلسزکیوکسان اولیگومری چندوجهی [PDF]

open access: yesBaspārish, 2017
در سال‌های اخیر، کامپوزیت‌های پلیمری با نانوذرات سیلسزکیوکسان اولیگومری چندوجهی (POSS) بسیار مطالعه شده‌اند. ابعاد نانومتری و نیز امکان وجود گروه‌های عاملی مختلف در ساختار این نانوذرات باعث شده است تا کامپوزیت‌های ساخته شده از آن‌ها، دارای خواص منحصربه ...
منصوره زارع زاده مهریزی   +3 more
doaj   +1 more source

Polymerization-Induced Emission [PDF]

open access: yes, 2019
This article highlights the recent developments of unorthodox luminescent polymers without large p-conjugated structure and their luminescence mechanism in last 2–3 years.
Bin Liu (7457861)   +5 more
core   +2 more sources

Protein nanoreactors and native enzymes for controlled/living radical polymerization [PDF]

open access: yes, 2013
The present PhD thesis entitled ‚Protein Nanoreactors and Native Enzymes for Controlled/Living Radical Polymerization‘ began with the hypothesis that protein-catalyst conjugates are able to beneficially influence controlled/living radical polymerization,
Renggli, Kasper
core   +1 more source

The pH dependence of polymerization and bundling by the essential bacterial cytoskeltal protein FtsZ [PDF]

open access: yes, 2011
There is a growing body of evidence that bacterial cell division is an intricate coordinated process of comparable complexity to that seen in eukaryotic cells.
Raúl Pacheco-Gómez   +17 more
core   +2 more sources

System Identification for Experimental Study for Polymerization Catalyst Reaction in Fluidized Bed [PDF]

open access: yes, 2011
In this work, system identification method is used to capture the reactor characteristics of production rate of polyethylene (PE) based on published experimental data. The identification method is used to measure the percentage effect on the production
Ibrehem, A. S.
core   +2 more sources

Polymerization Shrinkage with Light-Initiated Dental Composites [PDF]

open access: yes, 2009
The present work addressed the determination and visualization of the direction and extent of polymerization shrinkage in the light-initiated composite. Hypotheses about the light-cured composite contraction patterns are controversial.
Chiang, Yu-Chih
core   +1 more source

Synthesis and Characterization of Quaternary Polymers as Superplasticizer and Assessing Their Effectiveness on Micronized Cement Particles [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2017
Different macromonomers having polyethylene glycol branches were synthesized via esterification reactions in various conditions. Quaternary polymers were prepared using synthesized macromonomers of polyoxyethylene acrylate and methacrylate with a PEG ...
Mohammad Reza Rostami Daronkola
doaj   +1 more source

Multi-heterostructure composites of Fe3O4 coated Janus nanoparticles and MWCNTs with high microwave absorption

open access: yesPolymer Testing, 2023
Microwave-absorbing materials with heterostructure represent a major challenge and opportunity in enabling strong microwave absorption over a wide bandwidth.
Hengqian Jin   +4 more
doaj   +1 more source

Effect of temperature, heating rate and zeolite-based catalysts on the pyrolysis of high impact polystyrene (HIPS) waste to produce fuel-like products [PDF]

open access: yesPolyolefins Journal, 2019
Pyrolysis of high impact polystyrene (HIPS) waste has been investigated under different process parameters, such as temperature, heating rate and types of zeolitic catalysts to produce valuable liquid products.
Zaher Tamri   +4 more
doaj   +1 more source

Evolution of crosslinking networks structure and thermo-oxidative aging behavior of unfilled NR/BR blends with TBIR as extra functional compatibilizer

open access: yesPolymer Testing, 2022
As the most popular rubber blends in rubber industry, the aging behaviors of NR/BR vulcanizates have been a major challenge in science and industry. Our previous work reported the substitution of trans-1,4-poly (isoprene-co-butadiene) (TBIR) for BR in ...
Huafeng Shao, Qinrui Guo, Aihua He
doaj   +1 more source

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