Polymeric crystallization under nanoscale 2D spatial confinement

Tsai Ming Chung; Tzu Chung Wang; Rong Ming Ho; Ya Sen Sun; Bao Tsan Ko

doi:10.1021/ma100998k

Polymeric crystallization under nanoscale 2D spatial confinement

Tsai Ming Chung, Tzu Chung Wang, Rong Ming Ho, Ya Sen Sun, Bao Tsan Ko

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

A study was conducted to investigate the way crystal nucleation and growth were related to the effects of altered size of cylindrical spatial confinement. It was demonstrated that reducing confinement space to an effective size made it possible to nucleate homogeneously as governing an overall crystallization process, while reducing confinement space caused the crystal growth of PCL blocks changing from preferred crystalline orientation to random orientation. Semicrystalline P4VP-PCL block copolymers (BCPs) were synthesized through living ring-opening polymerization (ROP) and atom-transfer radical polymerization (ATRP) in sequence. Bulk sample of BCPs were prepared by solution casting from dichloromethane (CH₂Cl₂) solution at room temperature. The cylinder-forming samples were also subjected to a large-amplitude oscillating shear at 190 °C to examine the grown crystal orientation under confinement and achieve a uniform, parallel alignment of the cylindrical microdomains.

Original language	English
Pages (from-to)	6237-6240
Number of pages	4
Journal	Macromolecules
Volume	43
Issue number	14
DOIs	https://doi.org/10.1021/ma100998k
Publication status	Published - 2010 Jul 27

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma100998k

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abstract = "A study was conducted to investigate the way crystal nucleation and growth were related to the effects of altered size of cylindrical spatial confinement. It was demonstrated that reducing confinement space to an effective size made it possible to nucleate homogeneously as governing an overall crystallization process, while reducing confinement space caused the crystal growth of PCL blocks changing from preferred crystalline orientation to random orientation. Semicrystalline P4VP-PCL block copolymers (BCPs) were synthesized through living ring-opening polymerization (ROP) and atom-transfer radical polymerization (ATRP) in sequence. Bulk sample of BCPs were prepared by solution casting from dichloromethane (CH2Cl2) solution at room temperature. The cylinder-forming samples were also subjected to a large-amplitude oscillating shear at 190 °C to examine the grown crystal orientation under confinement and achieve a uniform, parallel alignment of the cylindrical microdomains.",

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AU - Chung, Tsai Ming

AU - Wang, Tzu Chung

AU - Ho, Rong Ming

AU - Sun, Ya Sen

AU - Ko, Bao Tsan

PY - 2010/7/27

Y1 - 2010/7/27

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Polymeric crystallization under nanoscale 2D spatial confinement

Abstract

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