The family of semi-crystalline, aromatic, high-temperature thermoplastics known as poly(ether-ketone)s are insoluble in conventional organic solvents, but undergo completely general and quantitatively reversible reactions with alkanedithiols in strong acid media, to give soluble poly(dithioacetal)s, which are readily characterisable by GPC and light scattering techniques.

Petro-derived commodity thermoplastics are relatively inexpensive, lightweight, and non-biodegradable materials, which can be readily molded at high temperatures into a range of products. The manufacturing such thermoplastic resins products has increased dramatically over the last 70 years. plastics based on polyolefins, polystyrenes, polyesters occupy largest share (80%) world's plastic market...

An automated process is described to assemble highly functionalized micro fluidic cartridges. Different materials such as glass, silicon and thermoplastics can be bonded using adhesive gaskets. The assembling and bonding sequence is realized at room temperature so that the biological function of the cartridge is fully preserved. Several control tests for alignment and orientation are integrated...

Thermoplastics elastomers, its processing and properties, electrical conductivity application as EMI shielding materials.

Abstract John Vlachopoulos (JV) started his polymer processing career with the process of calendering. In two landmark papers Kiparissides, C. and Vlachopoulos, J. (1976). Finite element analysis Polym. Eng. Sci. 16: 712–719; (1978). A study viscous dissipation in calendering power-law fluids. 18: 210–214 he introduced Element Method (FEM) to solve governing equations mass, momentum, energy bas...

Thermoplastic Elastomers (TPE) are materials, which combine the advantages of elastomers and thermoplastics. TPE is not only used as replacement for thermoplastics. More and more parts, formerly made of rubber like CVJ boots and hydraulic seals, are nowadays made of TPE. Since the mechanical behavior of TPEs is different to elastomers, the design of TPE parts cannot be copied directly from thei...

Modeling laser transmission welding of thermoplastics requires knowledge of the optical properties of the materials being joined. The optical properties are highly dependent on their unique combinations of base polymer, pigments, and fillers. Because of the complex phase transition that occurs when heating thermoplastics, the optical properties are not a constant, but a function of temperature....

Abstract Thermoplastics combine high freedom of design with economical mass production. Metallic coatings on thermoplastics enable power and signal transmission, shield sensitive parts inside housings can reduce the temperature in critical areas by functioning as a heat sink. The most used technical are polyamides (PA), while described use cases often realized using Cu. Consequently, several st...