Molecular Weight of Polymers
It is the size of macromolecules that gives them their unique and useful properties. Size allows polymer chains to act as a group so that when one part of the…
CRYSTALLINE AND AMORPHOUS COMBINATIONS
Most polymers consist of a combination of crystalline and amorphous regions. Even within polymer crystals such as spherulites (Figs. 2.21 and 2.22), the regions between the ordered folded crystalline lamellae…
POLYMER STRUCTURE–PROPERTY RELATIONSHIPS
Throughout the text we will relate polymer structure to the properties of the polymer. Polymer properties are related not only to the chemical nature of the polymer but also to…
STEREOCHEMISTRY OF POLYMERS
The terms “memory” and “to remember” are similar and used by polymer chemists in similar, but different, ways. The first use of the terms “memory” and “to remember” involves reversible…
Polymer Structure (Morphology)
The size and shape of polymers are intimately connected to their properties. The shape of polymers is also intimately connected to the size of the various units that make up…
Polymer Structure (Morphology)
The size and shape of polymers are intimately connected to their properties. The shape of polymers is also intimately connected to the size of the various units that make up…
HISTORY OF POLYMERS
Since most chemists and chemical engineers are now involved in some phase of polymer science or technology, some have called this the polymer age. Actually, we have always lived in…
Properties
Ceramics are typically hard and brittle. While their strength in compression is very high, they are not suitable for loading in tension. Their brittle qualities mean that they fracture very…
Ceramic Types
Clay Products Many common ceramics such as bricks and tiles are based primarily on clay. These are pressed or extruded into shape while in a wet plastic state and then…
Structure and Form
Atomic Bonding Ceramic and glass atomic structures are a network of either ionic or covalent bonds. Quite often they are a mixture of both. The individual structures are quite complex,…
