Results 21 to 30 of about 6,260 (167)

Determination of Gel Content (C-C Crosslink) in Polybutadiene Rubber by Differential Scanning Calorimetry [PDF]

open access: yesعلوم 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
doaj   +1 more source

The effect of crosslink density on the cold crystallization behavior of polybutadiene elastomers

open access: yeseXPRESS 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
doaj   +1 more source

Preparation of star-shaped polybutadiene via coordinative chain transfer polymerization

open access: yesHecheng 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
doaj   +1 more source

"Preparation of high vinyl polybutadiene/sepiolite nanocomposite

open access: yesHecheng 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
doaj   +1 more source

Effect of liquid polybutadiene rubber on processability and fatigue resistance of cis-1,4-butadiene rubber /natural rubber blends

open access: yesHecheng 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
doaj   +1 more source

Estudo comparativo de diferentes tipos de polibutadieno na tenacificação de poliestireno Comparative study of different types of polybutadiene on the toughening of polystyrene

open access: yesPolímeros, 2007
Neste trabalho foi avaliada a tenacificação de poliestireno (PS) utilizando três tipos de polibutadieno (PB): polibutadieno baixo-cis (PBb), polibutadieno alto-cis (PBa) e copolímero em bloco (SBS) de estireno e butadieno (PBco). Foi observado um aumento
Fernanda M. B. Coutinho   +3 more
doaj   +1 more source

"Effect of cis-1,4-unit on properties of rare earth-based polybutadiene rubber with narrow distribution"

open access: yesHecheng xiangjiao gongye, 2023
"The structures of three self-made rare earth-based cis-1,4-polybutadiene rubber with narrow distribution were analyzed, and the relationships between cis-1,4-unit content and properties were studied.
SONG Yu-ping1,2, HE Wen-heng1,2, XUE Wen-hui1, LIANG Sheng-kai3, TANG Tian-ming3
doaj   +1 more source

Infrared Spectra of Polybutadienes [PDF]

open access: yesRubber 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‐CHCH groups appears at 740 cm.−1 and that the apparent shift of this band to lower frequencies, as the amount of cis‐CHCH decrease in a polybutadiene, is due to the presence of other bands in
openaire   +1 more source

Comparative Assessment of Stabilised Polybutadiene Binder under Accelerated Ageing

open access: yesJournal 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
doaj   +3 more sources

Studies on thermo-oxidative degradation of synthetic rubbers 1-4 and 1-2 polybutadienes

open access: yesVietnam Journal of Science, Technology and Engineering, 2017
The production of natural latex is limited, and the related demand for terrestrial transportation has increased. The synthesis of rubber has become necessary and the resulting synthetics’ properties must be known.
Quoc Hung Nguyen   +3 more
doaj   +1 more source

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