TY  - JOUR
A1  - Heinze, Daniel
A1  - Mang, Thomas
A1  - Peter, Karin
A1  - Möller, Martin
A1  - Weichold, Oliver
T1  - Synthesis of low molecular weight poly(vinyl acetate) and its application as plasticizer
JF  - Journal of applied polymer science
N2  - Poly(vinyl acetate), PVAc, with a degree of polymerization Xn = 10 was prepared by chain-transfer radical polymerization using carbon tetrachloride and used as oligomeric plasticizer for commercial PVAc. However, the chlorinated chain ends cause a low thermal stability requiring mild Cl/H substitution. The product exhibits high thermal stability and excellent melt-compounding properties. Blends of oligomeric and commercial PVAc show single glass transition temperatures which decrease with higher oligomer content and exhibit small negative deviations from Fox' linear additivity rule. This indicates plasticization and miscibility being mainly due to entropic effects. Injection-moulded thick specimens show ductile behaviour at oligomer contents >10 wt %, while sheets with a thickness of 0.2–0.5 mm appear flexible already at 7.5 wt %. The oxygen permeability coefficients are an order of magnitude lower than those of low-density polyethylene. Due to the sum of their properties, the plasticized sheets present a promising alternative in the preparation of barrier materials.
Y1  - 2014
U6  - http://dx.doi.org/10.1002/app.40226
SN  - 1097-4628 (E-Journal); 0021-8995 (Print)
VL  - 131
IS  - 9
SP  - Article No. 40226
PB  - Wiley
CY  - New York
ER  - 
TY  - JOUR
A1  - Raue, Markus
A1  - Wambach, M.
A1  - Glöggler, S.
A1  - Grefen, Dana
A1  - Kaufmann, R.
A1  - Abetz, C.
A1  - Georgopanos, P.
A1  - Handge, U. A.
A1  - Mang, Thomas
A1  - Blümich, B.
A1  - Abetz, V.
T1  - Investigation of historical hard rubber ornaments of Charles Goodyear
JF  - Macromolecular chemistry and physics
Y1  - 2014
SN  - 1022-1352
VL  - Vol. 215
IS  - No. 3
SP  - 245
EP  - 254
PB  - Wiley-VCH
CY  - Weinheim
ER  -