Poly(ethylene oxide)-block-poly[2-(dimethylamino)ethyl methacrylate] as Strengthening Agent in Paper: Dynamic Mechanical Characterization
✍ Scribed by Arja-Helena Vesterinen; Jaana Rich; Petri Myllytie; Janne Laine; Jukka Seppälä
- Book ID
- 102487432
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 305 KB
- Volume
- 295
- Category
- Article
- ISSN
- 1438-7492
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
To enhance adhesion properties of PEO on wood fibers, block polymers of PEO and 2‐(dimethylamino)ethyl methacrylate were synthesized. The polymers were further modified to obtain strongly cationic species. The resulting polymers were used as additives in paper sheets. Papers were studied by DMA in a controlled‐humidity chamber. Addition of the PEO block co‐polymers enhanced paper strength. The strength of the paper sheets was highest when polymer with molecular weight of 400 kg · mol^−1^ was used as an additive. Highly cationic block co‐polymers increased moduli of paper sheets more than their weakly cationic analogs, which indicated strong interaction with fiber surfaces. Strength of the paper sheets decreased both with increased temperature and humidity.
magnified image