Results 31 to 40 of about 10,860 (230)
Molecules, 2019 Two novel cobalt diphenylphosphine complexes were synthesized by reacting cobalt(II) chloride with tert-butyl(diphenyl)phosphine (PtBuPh2) and (S)-(+)neomenthyldiphenylphosphine [(S)-NMDPP].
Giovanni Ricci +4 more
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Rheological Master Curves of Crystallizing Polymer Mixtures
Applied Rheology, 2006 We present a simple methodology for extending linear viscoelastic measurements of crystallizing polymers to the high-frequency regime, where usually crystallization kinetics represents an obstacle. The idea is to perform rapid quenches, below the melting
Kapnistos M., Vlassopoulos D.
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Primary Thickening in Nascent Single Crystals of High-Molecular-Weight trans-1,4-Polybutadiene
, 2023 Fine-tuning the polymerization conditions, in particular, solvent medium, catalytic system, and thermodynamic parameters, it is feasible to crystallize the growing polymer chain directly into single crystals.
Jiayi Zhao +11 more
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Hecheng xiangjiao gongye, 2022 Phenol functionalized liquid 1,2-PB (1,2-PB-g-CA) was prepared by grafting bio based cardanol (CA) onto 1,2-polybutadiene rubber (1,2-PB) by olefin metathesis.
GAO Wen-ke, ZHANG Wen-jing, LIU Jin-hui, HUA Jing?鄢
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Determination of Gel Content (C-C Crosslink) in Polybutadiene Rubber by Differential Scanning Calorimetry [PDF]
علوم و تکنولوژی پلیمر, 2014 Due to the gel formation in polybutadiene and some of the problems raised in rubber industry such as groove cracking in products, quantification of the gel content and identification of the microstructure of butadiene elastomer is extremely important. In
Saeed Taghvaei Ganjali +2 more
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The effect of crosslink density on the cold crystallization behavior of polybutadiene elastomers
eXPRESS Polymer Letters, 2023 This report presents an insightful investigation of the cold crystallization behavior of sulfur-crosslinked polybutadiene elastomers. The influence of crosslink density on the cold crystallization activities of sulfur-crosslinked polybutadiene rubber (BR)
Arpan Datta Sarma +3 more
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Preparation of star-shaped polybutadiene via coordinative chain transfer polymerization
Hecheng xiangjiao gongye, 2022 Ternary rare earth coordination chain transfer polymerization system of neodymium 2,5-dimethyl-2-ethylcaproate / diisobutyl aluminum hydride / dichlorodimethylsilane was used, and the ring opening polymerization of dicyclohexlactone 4,4ˊ- dioxane heptyl ...
LI Qiong-rong; LIU Heng; WANG Feng; ZHANG Chun-yu; ZHANG Xue-quan
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"Preparation of high vinyl polybutadiene/sepiolite nanocomposite
Hecheng xiangjiao gongye, 2022 High vinyl polybutadiene / sepiolite nanocomposites were prepared by in-situ polymerization using sepiolite as catalyst carrier for the coordination polymerization of butadiene catalyzed by molybdenum-based catalyst.
WANG Xiao-tong, XIE Ting-hao, TANG Jian, HUA Jing
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Hecheng xiangjiao gongye, 2022 Effects of liquid polybutadiene rubber activity-50 on the processability and fatigue resistance of cis-1,4-polybutadiene rubber (BR)/natural rubber (NR) blends were investigated.
HAN Liu; LIU Zi-yan; WANG Rui-jia; FENG Qiang
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Infrared Spectra of Polybutadienes [PDF]
Rubber Chemistry and Technology, 1965 AbstractIt is shown, by analytical resolutions of the spectra of isomerized cis‐1,4‐polybutadienes, that the band due to hydrogen out‐of‐plane vibrations of cis‐CHCH groups appears at 740 cm.−1 and that the apparent shift of this band to lower frequencies, as the amount of cis‐CHCH decrease in a polybutadiene, is due to the presence of other bands in
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