Preparation of poly(methyl methacrylate-co-maleic anhydride)/SiO2TiO2 hybrid materials and their thermo- and photodegradation behaviors

2005 ◽  
Vol 97 (4) ◽  
pp. 1714-1724 ◽  
Author(s):  
Jianwen Xu ◽  
Wenfang Shi ◽  
Ming Gong ◽  
Fei Yu ◽  
Lifeng Yan
Keyword(s):  
Maleic Anhydride ◽  
Methyl Methacrylate ◽  
Hybrid Materials ◽  
Poly Methyl Methacrylate

Reactions of macroions with ester and carboxylic groups of polymers

1987 ◽  
Vol 52 (9) ◽  
pp. 2194-2203
Author(s):  
Miloslav Kučera ◽  
Dušan Kimmer ◽  
Karla Majerová ◽  
Josef Majer
Keyword(s):  
Maleic Anhydride ◽  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Bond Formation ◽  
Covalent Bond ◽  
The Other ◽  
Poly Methyl Methacrylate ◽  
Other Hand ◽  
Carboxylic Groups ◽  
Poly Acrylic Acid

In the reaction of dianions with poly(methyl methacrylate), only an insignificant amount of insoluble crosslinked product is obtained. If, however, the concentration of grafting dianions approaches that of ester groups, the amount of poly(methyl methacrylate) which may thus be crosslinked becomes quite significant. Dications, too, can bring about crosslinking of only an insignificant number of poly(methyl methacrylate) chains. Carboxylic groups in poly(acrylic acid) react with dianions and dications in an anhydrous medium similarly to ester groups. On the other hand, in the presence of a cocatalytic amount of water dications are more readily bound to carboxylic groups, forming a covalent bond. The relatively highest efficiency was observed in the bond formation between dication and the poly[styrene-alt-(maleic anhydride)], both in an anhydrous medium and in the presence of H2O.

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
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