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PHYSICAL, THERMAL, AND MECHANICAL PROPERTIES OF …
Physical properties of polymers include molecular weight, molar volume, density, degree of polymerization, crystallinity of material, and so on. ... solid Solid crystalline state Temperature Figure A1.4. Melting point and glass transition temperature of polymer. ... The cross-linking restricts the motion of the chains and ...

[PDF File]Solid State Theory
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richness of topics has turned solid state physics into the largest sub eld of physics; furthermore, it has arguably contributed most to technological development in industrialized countries. Figure 1: Atom cores and the surrounding electrons. Condensed matter (solid bodies) consists of atomic nuclei (ions), usually arranged in a regular

Introduction to Solid State NMR - Emory University
Much of the original solid state NMR in the literature focuses only upon the measurement of 1H spin-lattice relaxation times as a function of temperature in order to investigate methyl group rotations or motion in solid polymer chains. The situation changed when it was shown by E.R. Andrew and

[PDF File]STATES OF MATTER
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the natur e of inter molecular forces, molecular interactions and effect of thermal energy on the motion of particles because a balance between these determines the state of a substance. 5.1 INTERMOLECULAR FORCES Intermolecular forces are the forces of attraction and repulsion between interacting particles (atoms and molecules). This term

[PDF File]Introduction to Liquid Crystals
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In the smectic state, the molecules maintain the general orientational order of nematics, but also tend to align themselves in layers or planes. Motion is restricted to within these planes, and separate planes are observed to flow past each other. The increased order means that the smectic state is more "solid-like" than the nematic.

[PDF File]Infrared Spectroscopy
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State Almost any solid, liquid or gas sample can be analyzed. Many sampling accessories are available. Amount Solids 50 to 200 mg is desirable, but 10 µg ground with transparent matrix (such as KBr) is the mini-mum for qualitative determinations; 1 to 10 µg minimum is required if solid …

[PDF File]Kinetic Theory and States of Matter
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container. Motion is a bit more random than that of a solid. They have enough kinetic energy to slip out of the ordered arrangement of a solid. Gas - Molecules are in continual straight-line motion. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.

[PDF File]IGCSE - Chemistry
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than the molecular size. A gas has no definite shape or volume, but occupies the entire container in which ... motion). The speed of movement depends on the mass of the particle, temperature and several other factors that you ... The following figure is a heating curve of a solid. At point ‘A’ the state is solid. At point ‘B’ the solid ...

[PDF File]Basics of Molecular Dynamics Simulation
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Molecular Dynamics A MD simulation generates a sequence of points in phase space connected in time The result is a trajectory of all particles in the system as a function of time Time averages and other properties can be calculated from this trajectory Motion of the system through phase space is governed by Hamiltonian equations of motion : r ...

[PDF File]Solid-State NMR Studies of the Succinate-Acetate Permease ...
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Keywords: membrane protein complex; functional state; native membrane environment; 1H-detected solid-state NMR 1. Introduction A protein is a delicate and sophisticated molecular machine that is always in motion. The advantage of NMR in protein structural …

Molecular motion in the solid state