Antifreeze properties of polyglycidol block copolymers

Eti Baruch, Yitzhak Mastai

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


In this paper, we describe a new biomimetic approach to the synthesis of block copolymers with antifreeze properties. Our approach focuses on the design of block copolymers that mimic the structure and functionality of antifreeze proteins. Hyperbranched copolymers containing poly (ethylene oxide)-polyethyleneimine blocks and polyglycidol side chains were synthesized and their antifreeze properties were studied. It is shown that these block copolymers can lower the freezing point of water up to 0.8°C at a relatively low concentration (1 mg ·mL 1). From DSC measurements it is proven that polyglycidol block copolymers slow down the crystallization kinetics of ice and lead to changes in the ice crystal morphology, as observed by cryo-optical microscopy.

Original languageEnglish
Pages (from-to)2256-2261
Number of pages6
JournalMacromolecular Rapid Communications
Issue number23
StatePublished - 3 Dec 2007


  • Biomimetic chemistry
  • Block copolymers
  • Differential scanning calorimetry (DSC)
  • Ice crystallization
  • Polymer additives


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