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<p>progress of reactions, and in what ways the polymer branches.</p>

<p><big>Classification</big></p>
<p><a href="page.php?w=Polymer">Polymer</a>s can be classified in many ways.  Polymers, strictly speaking, comprise most solid matter: minerals (i.e. most of the Earth's crust) are largely polymers, metals are 3-d polymers, organisms, living and dead, are composed largely of polymers and water. Often polymers are classified according to their origin:<br/>
* <a href="page.php?w=biopolymer">biopolymer</a>s<br/>
* <a href="page.php?w=synthetic_polymer">synthetic polymer</a>s<br/></p><p>
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