Results 21 to 30 of about 19,854 (229)
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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Determination of Polybutadiene Unsaturation Content in Thermal and Thermo-Oxidative Degradation Processes by NMR [PDF]
علوم و تکنولوژی پلیمر, 2013 The unsaturation content of various polybutadiene (PBD) types of 1,4-cis, 1,4-trans and 1,2-vinyl isomers with different molecular weights was investigated.
Farshid 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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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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Tribological Characterization of Some Elastomers Used at Progressive Cavity and Piston Pumps [PDF]
MATEC Web of Conferences, 2020 The progressive cavity pump (PCP) is a positive displacement pump, consisting of a polished helical-shaped rod (rotor) turning inside a helical elastomer (stator).
Mohamed Iyad Al Naboulsi +3 more
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Repulsive bimodal atomic force microscopy on polymers
Beilstein Journal of Nanotechnology, 2012 Bimodal atomic force microscopy can provide high-resolution images of polymers. In the bimodal operation mode, two eigenmodes of the cantilever are driven simultaneously.
Alexander M. Gigler +5 more
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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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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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