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Nano silica was modified by soap-free emulsion polymerization using methacrylic acid (MA) and acrylic acid (AA)as monomer

Zhengan Chen

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Abstract

Nano silica was modified by means of soap-free emulsion polymerization with α - methacrylic acid (MA) and acrylic acid(AA)as monomer. Process conditions such as reaction temperature and time and ratio of materials used have been investigated with orthogonal experiment method, nano silica particles before and after modification were characterized by IR and DTA, respectively. Optimums of modified reaction were summarized as follows:Reaction temperature is at 80 ℃, reaction time is for 3h, and the ratio of MA to nano silica by mass is 3:100. Under the optimum, nano silica can be modified efficiency.

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What this paper is about

Nano silica was modified by means of soap-free emulsion polymerization with α - methacrylic acid (MA) and acrylic acid(AA)as monomer. Process conditions such as reaction temperature and time and ratio of materials used have been investigated with orthogonal experiment method, nano silica particles before and after modification were characterized by IR and DTA, respectively. Optimums of modified reaction were summarized as follows:Reaction temperature is at 80 ℃, reaction time is for 3h, and the ratio of MA to nano silica by mass is 3:100. Under the optimum, nano silica can be modified efficiency.

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Available abstract

Nano silica was modified by means of soap-free emulsion polymerization with α - methacrylic acid (MA) and acrylic acid(AA)as monomer. Process conditions such as reaction temperature and time and ratio of materials used have been investigated with orthogonal experiment method, nano silica particles before and after modification were characterized by IR and DTA, respectively. Optimums of modified reaction were summarized as follows:Reaction temperature is at 80 ℃, reaction time is for 3h, and the ratio of MA to nano silica by mass is 3:100. Under the optimum, nano silica can be modified efficiency.

Key concepts: Methacrylic acid, Emulsion polymerization, Acrylic acid, Monomer, Polymerization, Polymer chemistry, Nano-, Materials science

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