Results 1 to 10 of about 1,240 (222)
Mpemba effect in crystallization of polybutene-1 [PDF]
Soft Matter, 2023 The Mpemba effect and its inverse can be understood as a result of nonequilibrium thermodynamics.
Jinghua Liu +4 more
core +5 more sources
Crystallization Kinetics and Polymorphic Transformations in Polybutene-1. [PDF]
J Res Natl Bur Stand A Phys Chem, 1965 When subcooled from the melt to any temperature between about 90 to 110 °C, polybutene-1 transforms at a readily measurable rate to a crystalline phase denoted "form 2," which is typically spherulitic. The kinetics of this process have been measured by optical and dilatometric techniques. The results are consistent with the concepts that the initiation
Powers J +3 more
europepmc +4 more sources
Polymer Testing, 2023 The creep resistance of polymer determines the dimensional stability of product under stress. The isotactic polybutene-1 (iPB) with outstanding high-temperature creep resistance and stress-crack resistance is applied widely in the field of hot-water ...
Yuanjin Zhao +3 more
doaj +2 more sources
Synthesis of Isotactic Polybutene-1 with Ziegler-Natta Catalyst [PDF]
علوم و تکنولوژی پلیمر, 2022 Hypothesis: Butene-1 is in excess in the polyolefin plants of Iran. Considering the properties of isotactic polybutene-1, including high creep and environmental stress cracking resistances, excellent elastic reversibility and good chemical abrasion ...
shokoufeh Hakim +2 more
doaj +2 more sources
Crystallinity and Stereoregularity of Polybutene-1
Kobunshi Kagaku, 1962 X線回折による結晶化度と密度とを主としてZieglem触媒により合成したポリブテン-1について測定した。結晶化度と比容積との間に直線関係が成立することから, 結晶質と非晶質の密度の値0.950および0, 868が得られた。アイソタクチックポリブテン-1には結晶化バンドとみなしうる吸収が多数見出された。一方, 1221cm-1バンドは固態状態ではその吸光度比の値が比容積と直線関係を示すが溶融状態や溶液で消失しない。したがって固態状態で一定の熱処理をした試料について比較するときには結晶化度の尺度として使用しうると考えられる。吸光度比 (A1221/A1151) と密度 (d) との間には次の実験式が成立する。
Atsuo Nishioka, Kazuo Yanagisawa
+6 more sources
Interfacial structure and properties of isotactic polybutene-1/polyethylene blends [PDF]
e-Polymers, 2022 Polymer blending is one of the most economical and effective techniques for achieving products with high comprehensive performances. However, the immiscibility between polymers results in a weak interface, which is typically the position where material ...
Niu Xiu +5 more
doaj +2 more sources
Journal of CO2 Utilization, 2023 As a polycrystalline polymer, isotactic polybutene-1 (iPB-1) will form different crystalline structures when it crystallizes under different conditions. In this work, we found a simple method to manipulate the cell structure of iPB-1 foams by controlling
Weijie Li +4 more
doaj +2 more sources
Polymer Testing, 2023 Investigating the structure of spherulite is instructive for better understanding the polymer crystallization process and mechanism, which is critical for the design and manufacture of polymeric products with high performance. Wide angle X-ray scattering
Peng Rao +5 more
doaj +2 more sources
Maleic Anhydride-Grafted Isotactic Polybutene-1 and Modified Polyamide 6. [PDF]
Polymers (Basel), 2018 Zhao Y +6 more
europepmc +3 more sources
Preparation of Maleic Anhydride Grafted Polybutene and Its Application in Isotactic Polybutene-1/Microcrystalline Cellulose Composites. [PDF]
Polymers (Basel), 2018 Wang B +6 more
europepmc +3 more sources