Results 11 to 20 of about 12,723 (223)
Crosslink density in polybutadiene
Journal of Polymer Science, 1958 AbstractThe crosslink density in polybutadiene has been determined by measurement of the polymer molecular weight by osmometry and the primary chain molecular weight by modifier analysis involving radioactive materials. Since the number of polymer molecules is equal to the number of primary chains less the number of crosslinkages, the experimental ...
L. H. Howland +3 more
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Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing
Journal of Aerospace Technology and Management, 2016 Polybutadiene elastomers are versatile materials, being employed at several applications from rocket propellant binder to adhesives and sealants. The elastomers derived from hydroxyl-terminated polybutadiene are usually stabilised with antioxidants to ...
Luiz Felipe Cannaval Sbegue +1 more
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, 2023 Shape memory polymers (SMPs), as a type of smart material, play a significant role in practical applications. Unlike the hot programming of SMPs, the cold programming of SMPs does not require preheating.
Tengfei Lin (1706983) +7 more
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Synthesis of Flower‐Like Polybutadiene
Macromolecular Chemistry and Physics, 2017 Synthesis of complex macromolecular architectures exhibiting no chain ends such as flower‐like polymers is still of interest in the aim of investigating their physicochemical properties. For this purpose, poly(3,4‐dimethyl maleic imidoethyl acrylate)‐block‐polybutadiene‐block‐poly(3,4‐dimethyl maleic imidoethyl acrylate) triblock copolymer is ...
Nicol, Erwan +4 more
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, 2022 To obtain and maintain rubber properties such as elasticity, strength, creep, and chemical resistance, or stiffness over time, rubbers must be chemically cross-linked, mainly by sulfur vulcanization.
Anne-Laure Wirotius (1483144) +4 more
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Rearrangement Strategy for the Preparation of Polymers With π-Conjugated Structures
Frontiers in Chemistry, 2021 π-Conjugated polymers are usually prepared by polymerization only. In this perspective article, typical synthesis methods of conjugated polymers are briefly summarized, and a novel strategy for preparing conjugated polymers by rearrangement is proposed ...
Jian Tang +4 more
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Characterization and Thermal Rearrangement Investigation of 1,4-Polybutadiene by Nuclear Magnetic Resonance Spectroscopy [PDF]
علوم و تکنولوژی پلیمر, 2009 Microstructural investigation of low molecular weight 1,4-polybutadiene (1,4-PBD) was studied by 1H and 13C nuclear magnetic resonance spectroscopy (NMR).
F. Ziaee
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Hecheng xiangjiao gongye, 2021 Through the thiol-ene click reaction, the dihydroxyl functional group was grafted onto the polybutadiene(PB) molecular chain. And Tannic acid(TA) was successfully incorporated into dihydroxyl functionalized PB through the synergy of hydrogen bonding ...
REN Qing-chen, SHI Zi-xing
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Engineering Reports, 2021 The synthetic rubber industry is of great importance and it is present in the daily life of world society. Butadiene rubber or polybutadiene is one of the most used polymers in this field, mainly in tire production.
Francisco R. L. Farias +2 more
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Hecheng xiangjiao gongye, 2022 A series of molybdenum based catalyst systems substituted with low alkoxy blocking ligands for the polymerization of 1,3-butadiene were synthesized, and polybutadiene with high vinyl content was prepared.
XIE Ting-hao; TANG Jian; GENG Jie-ting; WANG Xiao-tong; HUA Jing
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