Molecular mobility in hybrid materials: A study of the 3(Trimethoxysilyl) propyl methacrylate-methyl methacrylate system

1994 ◽  
Vol 2 (1-3) ◽  
pp. 135-138 ◽  
Author(s):  
C. Ma� ◽  
J. F. Cornu ◽  
L. Arnaud ◽  
J. Perez
Keyword(s):  
Methyl Methacrylate ◽  
Hybrid Materials ◽  
Molecular Mobility ◽  
Propyl Methacrylate

Local Coordination, Influence on Synthesis and Luminescent Features of Eu3+ Ions in SiO2–Poly(methyl methacrylate) Hybrid Materials

2018 ◽  
Vol 57 (11) ◽  
pp. 3941-3949 ◽  
Author(s):  
Filipe Augusto de Jesus ◽  
Barbara Vasconcelos Santana ◽  
José Maurício Almeida Caiut ◽  
Victor Hugo Vitorino Sarmento
Keyword(s):  
Methyl Methacrylate ◽  
Hybrid Materials ◽  
Poly Methyl Methacrylate ◽  
Local Coordination

Synthesis of POSS−Methyl Methacrylate-Based Cross-Linked Hybrid Materials

2008 ◽  
Vol 41 (5) ◽  
pp. 1685-1692 ◽  
Author(s):  
Elda Markovic ◽  
Stephen Clarke ◽  
Janis Matisons ◽  
George P. Simon
Keyword(s):  
Methyl Methacrylate ◽  
Hybrid Materials

scholarly journals Photoinduced Metal-Free Surface Initiated ATRP from Hollow Spheres Surface

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 599 ◽  
Author(s):  
Chun-Na Yan ◽  
Qian Liu ◽  
Lin Xu ◽  
Li-Ping Bai ◽  
Li-Ping Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Free Surface ◽  
Methyl Methacrylate ◽  
Hybrid Materials ◽  
Hollow Spheres ◽  
Polymerization Process ◽  
Resonance Spectroscopy ◽  
Hydroxyl Groups ◽  
Metal Free ◽  
Thermal Stability Of

Well-defined amphiphilic diblock copolymer poly (methyl methacrylate)-b-poly (N-isopropylacrylamide) grafted hollow spheres (HS-g-PMMA-b-PNIPAM) hybrid materials were synthesized via metal-free surface-initiated atom transfer radical polymerization (SI-ATRP). The ATRP initiators α-Bromoisobutyryl bromide (BIBB) were attached onto hollow sphere surfaces through esterification of acyl bromide groups and hydroxyl groups. The synthetic ATRP initiators (HS-Br) were further used for the metal-free SI-ATRP of methyl methacrylate (MMA) and N-isopropyl acrylamide (NIPAM) using 10-phenylphenothiazine (PTH) as the photocatalyst. The molecular weight of the polymers, structure, morphology, and thermal stability of the hybrid materials were characterized via gel permeation chromatography (GPC), X-ray photoelectron spectroscopy (XPS), 1H-nuclear magnetic resonance spectroscopy (1H NMR), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and thermogravimetric analysis (TGA), respectively. The results indicated that the ATRP initiator had been immobilized onto HS surfaces successfully followed by metal-free SI-ATRP of MMA and NIPAM, the Br atom had located at the end of the main PMMA polymer chain, and the polymerization process possessed the characteristic of controlled/“living” polymerization. The thermal stability of the hybrid materials was increased significantly compared to the pure PMMA and PNIPAM.

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