Coil-globule transition of a single short polymer chain: an exact enumeration study |
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Authors: | Ponmurugan M Narasimhan S L Krishna P S R Murthy K P N |
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Institution: | Materials Science Division, Indira Gandhi Center of Atomic Research, Kalpakkam 603102, Tamil Nadu, India. |
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Abstract: | The authors present an exact enumeration study of short self-avoiding walks in two as well as in three dimensions that addresses the question, "what is the shortest walk for which the existence of all the three scaling regimes--coil, globule, and the theta--could be demonstrated." Even though they could easily demonstrate the coil and the globule phase from free energy considerations, they could demonstrate the existence of a theta temperature only by using a scaling form for the distribution of gyration radius. That even such short walks have a scaling behavior is an unexpected result of this work. |
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