Synthesis of poly( N ‐isopropylacrylamide) by distillation precipitation polymerization and quantitative grafting on mesoporous silica | Zendy

Jadhav Sushilkumar A. | Zendy; Brunella Valentina | Zendy; Miletto Ivana | Zendy; Berlier Gloria | Zendy; Scalarone Dominique | Zendy

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Synthesis of poly( N ‐isopropylacrylamide) by distillation precipitation polymerization and quantitative grafting on mesoporous silica

Author(s) -

Jadhav Sushilkumar A.,

Brunella Valentina,

Miletto Ivana,

Berlier Gloria,

Scalarone Dominique

Publication year - 2016

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.44181

Subject(s) - attenuated total reflection , materials science , grafting , fourier transform infrared spectroscopy , polymerization , chemical engineering , polymer , polymer chemistry , dynamic light scattering , thermogravimetric analysis , differential scanning calorimetry , poly(n isopropylacrylamide) , lower critical solution temperature , precipitation polymerization , mesoporous silica , radical polymerization , nanoparticle , copolymer , mesoporous material , chemistry , organic chemistry , nanotechnology , catalysis , physics , engineering , composite material , thermodynamics

In this work, syntheses of thermoresponsive poly( N ‐isopropylacrylamide) (PNIPAM) with different molecular weights were carried out in ethanol by distillation precipitation polymerization (DPP) technique. The synthesized polymers were fully characterized by attenuated total reflection Fourier‐transform infrared (ATR‐FTIR) spectroscopy, nuclear magnetic resonance spectroscopy, and size exclusion chromatography techniques. The lower critical solution temperatures of the polymers were determined with differential scanning calorimetry. A simple and versatile method for the in situ synthesis and grafting of PNIPAM on mesoporus silica nanoparticles (MSNs) with improved control over quantitative grafting is devised. The PNIPAM grafted MSNs were characterized with ATR‐FTIR, thermogravimetric analysis, transmission electron microscopy, and dynamic light scattering analyses. From the results obtained it is showed that quantitative grafting of PNIPAM on MSNs from 1 to 20% by weight can be tuned by manipulating the in situ DPP reaction conditions. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 44181.

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