Fabrication of honeycomb-structured porous films from poly(3- hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) via the breath figures method

Mongyoung Huh; Min Hye Jung; Young Soo Park; Tae Beom Kang; Changwoon Nah; Robert A. Russell; Peter J. Holden; Seok Il Yun

doi:10.1002/pen.22161

Fabrication of honeycomb-structured porous films from poly(3- hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) via the breath figures method

Mongyoung Huh
, Min Hye Jung
, Young Soo Park
, Tae Beom Kang
, Changwoon Nah
, Robert A. Russell
, Peter J. Holden
, Seok Il Yun^*

^*Corresponding author for this work

Department of Polymer -Nano Science &Technology

Research output: Contribution to journal › Journal article › peer-review

8 Scopus citations

Abstract

Formation of porous films from poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) using the breath figures (BF) method was investigated by evaporating solutions in chloroform in humid air and examining film structure using optical and scanning electron microscopy (SEM). BF films were successfully fabricated from PHB (M_w = 486,000 g/mol) and displayed hexagonal arrays of pores, which varied in diameter (D = 7-2 μm) with solution concentrations (0.5-2.00%). SEM of fractured films also showed subsurface closed nano-pores (D = 500-700 nm). BF films cast from PHBV (5% HV) formed arrays with smaller pores and apparent surface defects. Differential scanning calorimetry showed that porous PHB and PHBV films produced using the BF method were more crystalline than nonporous solvent cast films of PHB and PHBV.

Original language	English
Pages (from-to)	920-926
Number of pages	7
Journal	Polymer Engineering and Science
Volume	52
Issue number	4
DOIs	https://doi.org/10.1002/pen.22161
State	Published - 2012.04

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Chemistry

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10.1002/pen.22161

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@article{4106edd07feb45c3974fe6e302885247,

title = "Fabrication of honeycomb-structured porous films from poly(3- hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) via the breath figures method",

abstract = "Formation of porous films from poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) using the breath figures (BF) method was investigated by evaporating solutions in chloroform in humid air and examining film structure using optical and scanning electron microscopy (SEM). BF films were successfully fabricated from PHB (Mw = 486,000 g/mol) and displayed hexagonal arrays of pores, which varied in diameter (D = 7-2 μm) with solution concentrations (0.5-2.00\%). SEM of fractured films also showed subsurface closed nano-pores (D = 500-700 nm). BF films cast from PHBV (5\% HV) formed arrays with smaller pores and apparent surface defects. Differential scanning calorimetry showed that porous PHB and PHBV films produced using the BF method were more crystalline than nonporous solvent cast films of PHB and PHBV.",

author = "Mongyoung Huh and Jung, \{Min Hye\} and Park, \{Young Soo\} and Kang, \{Tae Beom\} and Changwoon Nah and Russell, \{Robert A.\} and Holden, \{Peter J.\} and Yun, \{Seok Il\}",

year = "2012",

month = apr,

doi = "10.1002/pen.22161",

language = "English",

volume = "52",

pages = "920--926",

journal = "Polymer Engineering and Science",

issn = "0032-3888",

number = "4",

}

TY - JOUR

T1 - Fabrication of honeycomb-structured porous films from poly(3- hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) via the breath figures method

AU - Huh, Mongyoung

AU - Jung, Min Hye

AU - Park, Young Soo

AU - Kang, Tae Beom

AU - Nah, Changwoon

AU - Russell, Robert A.

AU - Holden, Peter J.

AU - Yun, Seok Il

PY - 2012/4

Y1 - 2012/4

N2 - Formation of porous films from poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) using the breath figures (BF) method was investigated by evaporating solutions in chloroform in humid air and examining film structure using optical and scanning electron microscopy (SEM). BF films were successfully fabricated from PHB (Mw = 486,000 g/mol) and displayed hexagonal arrays of pores, which varied in diameter (D = 7-2 μm) with solution concentrations (0.5-2.00%). SEM of fractured films also showed subsurface closed nano-pores (D = 500-700 nm). BF films cast from PHBV (5% HV) formed arrays with smaller pores and apparent surface defects. Differential scanning calorimetry showed that porous PHB and PHBV films produced using the BF method were more crystalline than nonporous solvent cast films of PHB and PHBV.

AB - Formation of porous films from poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) using the breath figures (BF) method was investigated by evaporating solutions in chloroform in humid air and examining film structure using optical and scanning electron microscopy (SEM). BF films were successfully fabricated from PHB (Mw = 486,000 g/mol) and displayed hexagonal arrays of pores, which varied in diameter (D = 7-2 μm) with solution concentrations (0.5-2.00%). SEM of fractured films also showed subsurface closed nano-pores (D = 500-700 nm). BF films cast from PHBV (5% HV) formed arrays with smaller pores and apparent surface defects. Differential scanning calorimetry showed that porous PHB and PHBV films produced using the BF method were more crystalline than nonporous solvent cast films of PHB and PHBV.

UR - https://www.scopus.com/pages/publications/84858444151

U2 - 10.1002/pen.22161

DO - 10.1002/pen.22161

M3 - Journal article

AN - SCOPUS:84858444151

SN - 0032-3888

VL - 52

SP - 920

EP - 926

JO - Polymer Engineering and Science

JF - Polymer Engineering and Science

IS - 4

ER -

Fabrication of honeycomb-structured porous films from poly(3- hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) via the breath figures method

Abstract

Quacquarelli Symonds(QS) Subject Topics

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