The physical structure of crystalline polymers is affected not only by intrinsic molecular properties such as constitution and configuration but also by external factors such as polymer concentration and cooling rates during crystallization. Most polymers are used industrially because of their solid-state ...
The Structure and Properties of Polymers By:Sawsan D.Shubbar V i What is a polymer? • A long molecule made up from lots of small molecules called • monomers. All the same monomer • Monomers all same type (A) • A + A + A + A • -A-A-A-A- ...
Structure and Properties of Polymers. Von H. V. Boenig . Thieme Editions in Chemistry and Related Areas. Herausgegeb. v. K. Niedenzu und H. Zimmer . Georg Thieme Publishers, Stuttgart 1973. 1. Aufl., X, 283 S., 46 Abb., 62 Tab., gcb. DM 58,–...
2) structure and properties of polymers 高聚物的结构与性能3) Structures and Properties of Biomaterials 生物材料结构与性能4) polymer structure 聚合物结构5) structure and property 结构与性能 1. Study of structure and property of amine collectors; 胺类捕收剂的结构与性能研究〔1〕 2. It is ...
Structure and properties of polymers for microelectronic and photonic application The objective of this study is to understand the interactions between P3AT and PVK, and to investigate the effects of blending on photonic and microelectronic performance of these materials. MASTER OF ENGINEERING (SME) W...
Polymers exhibit varying degrees ofcrystallinity, which significantly influence their strength, density, and thermal properties. Crystallinity arises from strong intermolecular forces and specificstereochemistry, withisotacticstructures being the most crystalline. Key thermal properties include theglass transition...
potential applications in high-tech fields,such as gas separation,Liquid crystal display,micro-electronics,communications,biomedicine et al.The present paper surveys the synthesis,structures and properties of polymers based on adamantane derivatives,then indicates the developing direction of the research ...
The structures of the obtained PEIs were confirmed by Fourier transform infrared spectroscopy (FTIR), 1H and 13C nuclear magnetic resonance spectroscopies (1H and 13C NMR) and by elemental analysis. These polymers show excellent solubility in a broad range of solvents and produce strong and ...
X Chen,J Yu,J Qin - 《Polymers & Polymer Composites》 被引量: 22发表: 2011年 Effect of Flame Retardant on Flame Retardancy and Mechanical Properties of Glass Fiber/Polypropylene Composites Composites based on polypropylene and glass fiber were prepared by melt mixing. The effect of magnesium hyd...
Themolecularweightofpolymerisveryhighandhaspolydispersity.Themainchainsofpolymercanrotate,leadingtoflexibilityofpolymerchains.Duetothermalmotion,theshape(conformation)ofpolymerchainschangewithtime.TheVanderwallsforceamongstructuralunitsisveryimportant.Crosslinkingmaygreatlychangepropertiesofpolymers.Theaggregatestateofpolymer...