## Abstract A study of the calcification of the polyvinyl alcohol/polyvinyl pyrrolidone (PVA/PVP) hydrogels during their exposure to a calcium chloride solution or a simulated body fluid has been carried out. On the basis of the experiments, using a two‐compartment permeation cell, the diffusion of
✦ LIBER ✦
Radiation synthesis and characterization of stimuli-sensitive chitosan–polyvinyl pyrrolidone hydrogels
✍ Scribed by Sergey A. Dergunov; Irina K. Nam; Grigoriy A. Mun; Zauresh S. Nurkeeva; Erengaip M. Shaikhutdinov
- Book ID
- 108256513
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 235 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0969-806X
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Novel pH-sensitive physically crosslinked hydrogels were synthesized by grafting D,L-lactic acid (LA) onto the amino groups in chitosan (CS) without a catalyst. The structures of these graft copolymers were analyzed by FTIR and X-ray measurements. Degree of substitution, side-chain length, and yield