Structure-Property Relationships — Rubbery Polymers
| Autor: | P. J. Ludovice |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
chemistry.chemical_classification
Quantitative Biology::Biomolecules Bulk modulus Materials science Polymer science Dispersity Structure property Polymer Branching (polymer chemistry) Condensed Matter::Disordered Systems and Neural Networks Amorphous solid Condensed Matter::Soft Condensed Matter chemistry Glass transition Predictive methods |
| Zdroj: | Polymer Science and Technology Series ISBN: 9789048140244 |
| DOI: | 10.1007/978-94-015-9231-4_51 |
| Popis: | Like glassy polymers, rubbery polymers are also complicated by effects absent from most small molecule systems such as molecular weight, thermal history and non-ideal structure. Therefore most predictive methods for polymer properties limit the problem by assuming a reference of a monodisperse infinite molecular weight, with no branching or structural variation (see Structure-Property Relationships: Glassy Polymers). As with glassy polymers, we shall confine our discussion to low strains described by the “equlibrium” mechanical moduli. Rubbery polymers have the same amorphous structure as glassy polymers but this order is not frozen in as these polymers are above the glass transition temperature (Tg). Mechanical properties in rubbery polymers are characterized by the rubbery plateau seen Figure 1. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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