Results 41 to 50 of about 437,245 (314)

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

Introduction: Polymerization [PDF]

open access: yesProceedings of the National Academy of Sciences, 2006
The Oxford English Dictionary defines polymer in its broadest sense as “a substance with a molecular structure formed from many identical small molecules bonded together.” Polymers, in their many diverse forms, are the remarkable materials constituting the essential “stuff” from which everything, from living organisms to computer components to common ...
openaire   +2 more sources

Kinetic Aspects of Polyester Solid State Polymerization [PDF]

open access: yes, 2009
The chapter describe the solid state polymerization of polyesters, and in particular it deals with 3.1. Introduction 3.2. Phenomena involved in solid state polymerization of polyesters 3.2.1. Possible reactions in solid state polymerization of polyesters
PILATI, Francesco   +3 more
core   +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

Polymeric nitrogen [PDF]

open access: yesPhysical Review B, 1992
Ab initio local-density functional total-energy calculations indicate that a polymeric form should be the stable phase of nitrogen above [approximately] 35 GPa, and that such a polyermic phase is likely to be both energetic and metastable at atmospheric pressure.
Mailhiot, C.   +3 more
openaire   +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
Ahmmed S. Ibrehem, Ibrehem, A. S.
core   +1 more source

Polymerization-Induced Self-Assembly of Conjugated Block Copoly(phenylacetylene)s [PDF]

open access: yes, 2020
Polymerization-induced self-assembly (PISA) was developed to prepare assemblies of conjugated block copoly­(phenylacetylene)­s for the first time. The living dispersion polymerization of (R/S)-4-(1-phenethylbamoyl)­phenylacetylene (rmAN/smAN) can be ...
Junxian Chen (4114183)   +5 more
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

Click polymerization [PDF]

open access: yesChemical Society Reviews, 2010
The development of new polymerization reactions is of critical importance to macromolecule science. In this critical review, we summarize the research efforts to incubate alkyne-azide click reactions into a versatile polymerization technique for the synthesis of poly(triazole)s (PTAs) with linear and hyperbranched structures.
Qin, Anjun   +2 more
openaire   +4 more sources

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

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