polymer造句
1. The nature of the polymer is currently a trade secret.
2. The polymer solution is separated from the pure solvent by a membrane, permeable only to solvent molecules.
3. Assessment of the performance of samples of polymer in improving oil recovery from North Sea reservoirs.
4. Physically the process of cooling a polymer through its glass transition would then be as follows.
5. Alternatively, a polymer solution can be thought of as a system formed by the condensation of solvent into a polymer.
6. The polymer is introduced into the dilatometer between the point A and the capillary.
7. A polymer forms over the marks and shows them up in a kind of 3-D relief.
8. Y., is made of an advanced polymer instead of metal.
9. The alignment of polymer chains at specific distances from one another to form crystalline nuclei will be assisted when intermolecular forces are strong.
10. In 1925, Svedberg first achieved this by subjecting polymer solutions to large force fields, generated at high speeds of rotation.
11. An amorphous polymer in this state has been likened to a plate of frozen spaghetti.
12. A porous polymer membrane bag seals the electrolyte, allowing water vapour, but not the acid solution, to pass.
13. Under these conditions, however, ethylene forms short chains or rings, rather than the long chains of the solid polymer.
14. Overall this book is a well produced scholarly account of the physics of polymer solutions.
15. For practical purposes T m is taken to be the melting temperature of the undiluted polymer irrespective of the crystalline content.
16. The same method can not be used for a polymer and one must resort to comparative techniques.
17. When a similar picture is adopted for the crystallization of a polymer certain basic assumptions are made first.
18. The same approach was extended by both Patterson and Flory to deal specifically with polymer systems.
19. This dimensional stability is an important consideration in choosing a polymer to use in the manufacture of an item.
20. They do this by coating a metal electrode with the polymer and then varying the voltage applied to the metal.
21. Of course, road accidents and pedestrian tumbles would also increase alarmingly as wind-blown polymer dust spread round the locality.
22. Another approach to ocular drug delivery is to insert a solid polymer device beneath the lid.
23. Researchers are experimenting by augmenting the system with fiber-optic sensors and polymer composites.
24. Scientists predicted that solitons should be very mobile, but only along the polymer chains.
25. The first attempts to explain the crystalline structure of a polymer sample produced a model called the fringe-micelle structure.
26. The process is normally incomplete because crystallization takes place when the polymer is a viscous liquid.
27. Light, high tensile strength fibres confer stiffness and strength to a polymer resin that binds them into a rigid three-dimensional form.
28. It intends to spend ￡1 million over the next five years on this, and other polymer research.
29. There are excellent review articles in, for example, Advances in Polymer Science, which provide up-to-date information.
30. It is defined as an average distance from the centre of gravity of a polymer coil to the chain end.
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