Styrene/Acrylic Acid Random Copolymers Synthesized by Nitroxide-Mediated Polymerization: Effect of Free Nitroxide on Kinetics and Copolymer Composition

2008 ◽  
Vol 41 (10) ◽  
pp. 3446-3454 ◽  
Author(s):  
Benoît Lessard ◽  
Scott C. Schmidt ◽  
Milan Marić
Keyword(s):  
Acrylic Acid ◽  
Random Copolymers ◽  
Copolymer Composition ◽  
Nitroxide Mediated Polymerization

Bio-based aliphatic/aromatic poly(trimethylene furanoate/sebacate) random copolymers: correlation between mechanical, gas barrier performances and compostability and copolymer composition

2021 ◽  
pp. 109800
Author(s):  
Agata Zubkiewicz ◽  
Anna Szymczyk ◽  
Rafaël J. Sablong ◽  
Michelina Soccio ◽  
Giulia Guidotti ◽  
...  
Keyword(s):  
Random Copolymers ◽  
Copolymer Composition ◽  
Gas Barrier

CO2-Triggered and temperature-switchable crystallization-driven self-assembly of a semicrystalline block copolymer in aqueous medium

2019 ◽  
Vol 10 (46) ◽  
pp. 6305-6314
Author(s):  
Rui Zhu ◽  
Xinjie Luo ◽  
Yujun Feng ◽  
Laurent Billon
Keyword(s):  
Block Copolymer ◽  
Acrylic Acid ◽  
Aqueous Medium ◽  
Self Assembly ◽  
Pure Block ◽  
Random Block ◽  
Nitroxide Mediated Polymerization ◽  
Poly Acrylic Acid

The synthesis of a semicrystalline block copolymer comprising a hydrophilic poly(acrylic acid) pure block and an amphiphilic poly(acrylic acid)-r-poly(octadecyl acrylate) random block by nitroxide-mediated polymerization is reported.

The effect of copolymer composition on the dynamics of random copolymers in a homopolymer matrix

2006 ◽  
Vol 125 (9) ◽  
pp. 094902 ◽  
Author(s):  
Sudesh Y. Kamath ◽  
Mark D. Dadmun
Keyword(s):  
Random Copolymers ◽  
Copolymer Composition

Self-Assembly of Mixtures of Block Copolymers of Poly(styrene-b-acrylic acid) with Random Copolymers of Poly(styrene-co-methacrylic acid)

Langmuir ◽  
2006 ◽  
Vol 22 (1) ◽  
pp. 419-424 ◽  
Author(s):  
Liu ◽  
Jun Wu ◽  
Joon-Seop Kim ◽  
Adi Eisenberg
Keyword(s):  
Block Copolymers ◽  
Acrylic Acid ◽  
Methacrylic Acid ◽  
Self Assembly ◽  
Random Copolymers

Luminescence studies of hydrophobically modified, water-soluble polymers. I. Fluorescence anisotropy and spectroscopic investigations of the conformational behaviour of copolymers of acrylic acid and styrene or methyl methacrylate

1995 ◽  
Vol 73 (11) ◽  
pp. 1982-1994 ◽  
Author(s):  
J.R. Ebdon ◽  
B.J. Hunt ◽  
D.M. Lucas ◽  
I. Soutar ◽  
L. Swanson ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Fluorescence Anisotropy ◽  
Aqueous Media ◽  
Water Soluble ◽  
Copolymer Composition ◽  
Segmental Motion ◽  
Hydrophobic Modification ◽  
Water Soluble Polymers ◽  
Soluble Polymers

Fluorescence spectroscopy and anisotropy measurements have been used to study a series of styrene – acrylic acid, STY–AA, and methyl methacrylate – acrylic acid, MMA–AA, copolymers in dilute methanolic and aqueous solutions. Copolymerization of either STY or MMA with AA has little effect upon the rate of intramolecular segmental motion in methanol solutions. In aqueous media, intramolecular hydrophobic aggregation occurs and restricts the macromolecular dynamics to an extent dependent upon pH, nature of the comonomer, and copolymer composition. The hydrophobic domains formed in these copolymer systems can solubilize organic guests. In this respect, STY is a more powerful modifier of AA-based polymer behaviours than is MMA. In general, the hydrophobic modification increases the solubilization power of the resultant polymer. Furthermore, the copolymers retain their solubilization capacities to higher values of pH the more hydrophobic the comonomer and the greater its content in the copolymer. The interiors of the hydrophobic aggregates reduce the mobilities of occluded guests: the microviscosities of the domain interiors depend upon the nature of the hydrophobe, pH, and copolymer composition. Keywords: fluorescence, anisotropy, water-soluble polymers, acrylic acid, hydrophobic modification.

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