Wetting behaviors of hyperbranched polymer composites within ordered porous template under vibration

Yun Chuan Xie, Yan Xu, Kai Leung Yung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


The wetting characteristics of hyperbranched polyesters (HBP) added cyclic olefin copolymer (COC) melt in microchannels of anodized alumina oxide (AAO) template were studied. The wetting displacements in microchannels were measured by scanning electronic microscopy (SEM). Compared with pure COC matrix, the composite flowed much longer in the microchannels under normal molding conditions. This may be attributed to the spherical shape of the HBP molecules. The flow study was extended by applying a series of high frequency vibration on the AAO template. Results show that vibration can enhance the wetting of the composite melts if phase separation does not occur. This paper provides useful information for micromolding based microfabrication, especially additives and vibration assisted micromolding.
Original languageEnglish
Pages (from-to)205-210
Number of pages6
JournalPolymer Engineering and Science
Issue number1
Publication statusPublished - 1 Jan 2012

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

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