Abstract
A new macromolecular modifier polybutadiene-grafting styrene/acrylonitrile/silicon tetracopolymer (PB-g-(SAN-co-Si))was synthesized by grafting styrene(St), acrylonitrile(An) and methacryloxypropyltrimethoxysilane (KH-570) onto polybutadiene(PB) latex particles via seeded emulsion polymerization technique. The tetracopolymer was characterized by transmission electron microscopy(TEM), Fourier transformation infrared spectrum (FT-IR) and grafting efficiency of St-An copolymer(SAN). TEM study indicates that latex particles obtained have a regular core-shell structure with a diameter of 300nm. FT-IR spectrum shows that KH-570 is chemically bonded onto the PB chains. SAN can be grafted on PB chains by both radical polymerization and hydrolysis/condensation of KH-570 and consequently grafting efficiency of SAN is enhanced significantly by KH-570.
| Original language | English |
|---|---|
| Pages (from-to) | 27-29+33 |
| Journal | Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering |
| Volume | 26 |
| Issue number | 9 |
| State | Published - Sep 2010 |
Keywords
- Core-shell emulsion
- Impact modifier
- PB-g-(SAN-co-Si)
- Seeded emulsion polymerization