Abstract
A polar polydimethylsiloxane terminator was prepared and reacted with living copolymer anion of styrene and butadiene, to synthesize end-functionalized styrene-butadiene rubber (SBR). As a polar functional terminator, poly(ethylene glycol)-poly(dimethylsiloxane) block copolymer (PEG-PDMS) containing a chlorosilyl moiety at one chain end (1) was synthesized by two-step hydrosilylation. End capping of poly(styrene-butadiene) living anion with PEG-PDMS terminator (1) afforded polymers with polar poly(dimethylsiloxane) end groups. PEG-PDMS terminated SBR, SBR-1, showed higher interaction with silica particles by microscophy and chromatography. Dynamic-mechanical analysis on silica composites of SBR-1 strongly supports the assumption that the PEG-PDMS end groups behave as polar functional groups, showing increase of the glass transition temperature (Tg) and storage modulus in the composite of SBR-1 with silica particles. The SBR-1/silica composite showed lower tan δ at 60°C and higher tan δ at 0°C as compared to SBR-Sn/silica composite.
| Original language | English |
|---|---|
| Pages (from-to) | 674-681 |
| Number of pages | 8 |
| Journal | Polymer Journal |
| Volume | 34 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2002 |
Bibliographical note
Funding Information:Acknowledgments. This work was supported by the
All Science Journal Classification (ASJC) codes
- Polymers and Plastics
- Materials Chemistry