Branching (polymer Chemistry) - Special Types of Branched Polymer

Special Types of Branched Polymer

  • A graft polymer molecule is a branched polymer molecule in which one or more the side chains are different, structurally or configurationally, from the main chain.
  • A star polymer molecule is a branched polymer molecule in which a single branch point gives rise to multiple linear chains or arms. If the arms are identical the star polymer molecule is said to be regular. If adjacent arms are composed of different repeating subunits, the star polymer molecule is said to be variegated.
  • A comb polymer molecule consists of a main chain with two or more three-way branch points and linear side chains. If the arms are identical the comb polymer molecule is said to be regular.
  • A brush polymer molecule consists of a main chain with linear, unbranched side chains and where one or more of the branch points has four-way functionality or larger.
  • A polymer network is a network in which all polymer chains are interconnected to form a single macroscopic entity by many crosslinks. See for example thermosets or interpenetrating polymer networks.
  • A dendrimer is a repetitively branched compound.

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