Abstract
Sodium polyaspartate (PAspNa) derivatives with vinylbenzyl pendant groups (VBA-PAspNa) were synthesized by reaction of poly(succinimide) (PSI) and vinylbenzylamine (VBA), and hydrolysis by sodium hydroxide (NaOH) solution. VBA-PAspNa is a macromonomer with multiple vinyl groups in the side chain. Submicron sized polymeric particles were prepared by dispersion copolymerization of styrene with VBA-PAspNa in a mixture of ethanol and water. Particle diameter decreased with increasing concentration and vinyl group fraction of VBA-PAspNa. When compared with the particle diameter prepared using PAspNa or benzylamine-modified PAspNa (BA-PAspNa) as a dispersion stabilizer without vinyl groups, the particles prepared with VBA-PAspNa were an order smaller than those prepared with PAspNa or BA-PAspNa. The particles after refinement show an adequate negative ζ-potential. From this result, we clarified the presence of PAspNa chains anchored onto the particle surface.
| Original language | English |
|---|---|
| Pages (from-to) | 762-770 |
| Number of pages | 9 |
| Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
| Volume | 47 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Feb 1 2009 |
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Keywords
- Acromonomers
- Particle
- Polyaspartate
ASJC Scopus subject areas
- Materials Chemistry
- Polymers and Plastics
- Organic Chemistry
Cite this
Heterogeneous polymerization with polyaspartate macromonomer having vinyl pendant groups. I. Synthesis of macromonomer and dispersion copolymerization of styrene. / Tomita, Keisuke; Ono, Tsutomu.
In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 47, No. 3, 01.02.2009, p. 762-770.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Heterogeneous polymerization with polyaspartate macromonomer having vinyl pendant groups. I. Synthesis of macromonomer and dispersion copolymerization of styrene
AU - Tomita, Keisuke
AU - Ono, Tsutomu
PY - 2009/2/1
Y1 - 2009/2/1
N2 - Sodium polyaspartate (PAspNa) derivatives with vinylbenzyl pendant groups (VBA-PAspNa) were synthesized by reaction of poly(succinimide) (PSI) and vinylbenzylamine (VBA), and hydrolysis by sodium hydroxide (NaOH) solution. VBA-PAspNa is a macromonomer with multiple vinyl groups in the side chain. Submicron sized polymeric particles were prepared by dispersion copolymerization of styrene with VBA-PAspNa in a mixture of ethanol and water. Particle diameter decreased with increasing concentration and vinyl group fraction of VBA-PAspNa. When compared with the particle diameter prepared using PAspNa or benzylamine-modified PAspNa (BA-PAspNa) as a dispersion stabilizer without vinyl groups, the particles prepared with VBA-PAspNa were an order smaller than those prepared with PAspNa or BA-PAspNa. The particles after refinement show an adequate negative ζ-potential. From this result, we clarified the presence of PAspNa chains anchored onto the particle surface.
AB - Sodium polyaspartate (PAspNa) derivatives with vinylbenzyl pendant groups (VBA-PAspNa) were synthesized by reaction of poly(succinimide) (PSI) and vinylbenzylamine (VBA), and hydrolysis by sodium hydroxide (NaOH) solution. VBA-PAspNa is a macromonomer with multiple vinyl groups in the side chain. Submicron sized polymeric particles were prepared by dispersion copolymerization of styrene with VBA-PAspNa in a mixture of ethanol and water. Particle diameter decreased with increasing concentration and vinyl group fraction of VBA-PAspNa. When compared with the particle diameter prepared using PAspNa or benzylamine-modified PAspNa (BA-PAspNa) as a dispersion stabilizer without vinyl groups, the particles prepared with VBA-PAspNa were an order smaller than those prepared with PAspNa or BA-PAspNa. The particles after refinement show an adequate negative ζ-potential. From this result, we clarified the presence of PAspNa chains anchored onto the particle surface.
KW - Acromonomers
KW - Particle
KW - Polyaspartate
UR - http://www.scopus.com/inward/record.url?scp=62849099975&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=62849099975&partnerID=8YFLogxK
U2 - 10.1002/pola.23192
DO - 10.1002/pola.23192
M3 - Article
VL - 47
SP - 762
EP - 770
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
SN - 0887-624X
IS - 3
ER -