By Himadri B. Bohidar

Macromolecules in strategies might be quite characterized by way of their shipping behaviour in answer section. The examine of the shipping approaches comprises diffusion coefficient, sedimentation coefficient, intrinsic viscosity and friction consistent. The query arises as to how one can explicitly characterise the macromolecules from the information of coefficients. This booklet solutions this question in a scientific demeanour. It offers actual interpretation of the information acquired in macromolecular delivery phenomena in a given approach and in addition addresses a few very important matters and ideas relating to biopolymers comparable to proteins and nucleic acids. the applying of strategies like conformational homes and salient physicochemical positive aspects of protein and nucleic acids can also be elucidated within the booklet. in accordance with the molecular constitution, it offers the basic strategies that are used to version and examine the static and delivery behaviour of polymers and biopolymers.

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The resultant electrostatic interaction between these two atoms is known as an ionic bond. In NaCl, Na11 atom loses an electron to achieve the stable configuration of Ne10 (1s2 2s2 2p6). Correspondingly, Cl17 captures one electron to achieve Ar18 stability. 32) Here, the dielectric permittivity of free space is ε0 and the dielectric constant of the medium is ε. 34) 32╇ |╇ Fundamentals of Polymer Physics and Molecular Biophysics This interaction energy is much larger than the thermal energy kBT.

Find the equilibrium separation (bond length); r is in Å. 40 nm respectively. Place these interactions in ascending order of binding energy. 7. 8. Why are physical gels weaker than chemical gels? Propose a simple experimental method to distinguish between the two. What is the physical meaning of the term ‘mesh size’? How does it differ from size of heterogeneous domains? 1â•… Basic concepts Polymer solutions are complex liquids at any given temperature and require specialized thermodynamic treatment.

3. 4. 5. 6. Define the following: (i) Homopolymer (ii) Block copolymer (iii) Grafted polymer (iv) Statistical polymer (v) Degree of polymerization (vi) Polydispersity Define number average, weight average and Z-average molecular weights. Under what condition of molecular weight distribution will these be identical? What will be the polydispersity in that case? A polymer solution contains three components with individual molecular weights 105, 106 and 107 Da. These have concentrations 10 mg/ml, 10% w/v and 10 g/l respectively.

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