Synthesis and structural characterization of dendritic-linear PMA-APM-r-PS copolymers for a self-assembled microporous matrix

Shang J.U. Hsieh, Cheng Chien Wang, Chuh-Yung Chen

Research output: Contribution to journalArticle

Abstract

A set of dendritic-linear copolymers, poly(maleic anhydride-grafted-3, 3′-dimethyl-(4-aminophenylazanediyl)bis(2methylpropanoate)) -random-polystyrene (PMA-APM-r-PS), was successfully prepared by copolymerization of the novel dendritic macromonomer, 4-(4-(bis(3-(4-(bis(3- methoxy-2-methyl-3-oxopropyl)amino)phenylamino)-2-methyl-3-oxopropyl)amino) phenylamino)-4-oxobut-2-enoic acid (MA-APM), with styrene monomer. The dendritic MA-APM macromonomer dendron 3,3′-dimethyl-(4-aminophenylazanediyl)bis(2- methylpropanoate) (APM) was then grafted by using the divergent growth method. FTIR, 1H NMR, and 13C NMR spectra were used to identify the structures of the dendron, the dendritic macromonomer, and the dendritic-linear PMA-APM-r-PS copolymer. Furthermore, microporous dendritic-linear PMA-APM-r-PS copolymer films were prepared by using solvent-induced phase separation at room temperature. We investigated the phase separation behavior and morphological structures of the den-dritic-linear copolymer film as functions of dendritic GMAHPAM segments in the content using SEM. Self-assembly of the dendritic-linear PMA-APM-r-PS copolymer in the MG2-X system, which represented the second generation dendron containing X wt % of the dendritic MA-APM segment, resulted in submicron phase segregation. Interestingly, the submicron phase segregation morphology of the MG2-43 sample presented a uniform size distribution of ordered-array structures. The results of this study demonstrate that controlling the appropriate macromonomer content via the grafting of a three-dimensional structure results in a self-assembly process that is capable of providing an ordered-array microporous morphology in a polymer film.

Original languageEnglish
Pages (from-to)3290-3301
Number of pages12
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume48
Issue number15
DOIs
Publication statusPublished - 2010 Aug 1

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Copolymers
Phase separation
Self assembly
Nuclear magnetic resonance
Maleic Anhydrides
Styrene
Polystyrenes
Maleic anhydride
Polymer films
Copolymerization
Monomers
Scanning electron microscopy
Acids
dendron
Temperature

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

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title = "Synthesis and structural characterization of dendritic-linear PMA-APM-r-PS copolymers for a self-assembled microporous matrix",
abstract = "A set of dendritic-linear copolymers, poly(maleic anhydride-grafted-3, 3′-dimethyl-(4-aminophenylazanediyl)bis(2methylpropanoate)) -random-polystyrene (PMA-APM-r-PS), was successfully prepared by copolymerization of the novel dendritic macromonomer, 4-(4-(bis(3-(4-(bis(3- methoxy-2-methyl-3-oxopropyl)amino)phenylamino)-2-methyl-3-oxopropyl)amino) phenylamino)-4-oxobut-2-enoic acid (MA-APM), with styrene monomer. The dendritic MA-APM macromonomer dendron 3,3′-dimethyl-(4-aminophenylazanediyl)bis(2- methylpropanoate) (APM) was then grafted by using the divergent growth method. FTIR, 1H NMR, and 13C NMR spectra were used to identify the structures of the dendron, the dendritic macromonomer, and the dendritic-linear PMA-APM-r-PS copolymer. Furthermore, microporous dendritic-linear PMA-APM-r-PS copolymer films were prepared by using solvent-induced phase separation at room temperature. We investigated the phase separation behavior and morphological structures of the den-dritic-linear copolymer film as functions of dendritic GMAHPAM segments in the content using SEM. Self-assembly of the dendritic-linear PMA-APM-r-PS copolymer in the MG2-X system, which represented the second generation dendron containing X wt {\%} of the dendritic MA-APM segment, resulted in submicron phase segregation. Interestingly, the submicron phase segregation morphology of the MG2-43 sample presented a uniform size distribution of ordered-array structures. The results of this study demonstrate that controlling the appropriate macromonomer content via the grafting of a three-dimensional structure results in a self-assembly process that is capable of providing an ordered-array microporous morphology in a polymer film.",
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Synthesis and structural characterization of dendritic-linear PMA-APM-r-PS copolymers for a self-assembled microporous matrix. / Hsieh, Shang J.U.; Wang, Cheng Chien; Chen, Chuh-Yung.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 48, No. 15, 01.08.2010, p. 3290-3301.

Research output: Contribution to journalArticle

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AB - A set of dendritic-linear copolymers, poly(maleic anhydride-grafted-3, 3′-dimethyl-(4-aminophenylazanediyl)bis(2methylpropanoate)) -random-polystyrene (PMA-APM-r-PS), was successfully prepared by copolymerization of the novel dendritic macromonomer, 4-(4-(bis(3-(4-(bis(3- methoxy-2-methyl-3-oxopropyl)amino)phenylamino)-2-methyl-3-oxopropyl)amino) phenylamino)-4-oxobut-2-enoic acid (MA-APM), with styrene monomer. The dendritic MA-APM macromonomer dendron 3,3′-dimethyl-(4-aminophenylazanediyl)bis(2- methylpropanoate) (APM) was then grafted by using the divergent growth method. FTIR, 1H NMR, and 13C NMR spectra were used to identify the structures of the dendron, the dendritic macromonomer, and the dendritic-linear PMA-APM-r-PS copolymer. Furthermore, microporous dendritic-linear PMA-APM-r-PS copolymer films were prepared by using solvent-induced phase separation at room temperature. We investigated the phase separation behavior and morphological structures of the den-dritic-linear copolymer film as functions of dendritic GMAHPAM segments in the content using SEM. Self-assembly of the dendritic-linear PMA-APM-r-PS copolymer in the MG2-X system, which represented the second generation dendron containing X wt % of the dendritic MA-APM segment, resulted in submicron phase segregation. Interestingly, the submicron phase segregation morphology of the MG2-43 sample presented a uniform size distribution of ordered-array structures. The results of this study demonstrate that controlling the appropriate macromonomer content via the grafting of a three-dimensional structure results in a self-assembly process that is capable of providing an ordered-array microporous morphology in a polymer film.

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