Synthesis and characterization of polypropylene-graft-poly(l-lactide) copolymers by CuAAC click chemistry
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The syntheses of polypropylene-graft-poly(l-lactide) copolymers (PP-g-PLAs) via copper (I)-catalyzed azide-alkyne cycloaddition "click" reaction (CuAAC) using azide side-chain functionalized polypropylene (PP-N-3) and alkyne end-functionalized poly(l-lactide) (PLA-Alkyne) were reported. The CuAAC was then applied to azide and different feeding ratios of alkyne functional polymers to give PP-g-PLAs that were characterized by FTIR, H-1-NMR, GPC, DSC, and WCA measurements. The CuAAC click reaction was achieved by two different feeding ratio (PP-N-3:PLA-Alkyne = 1:5 and 1:10) and thermal, biodegradable, and surface properties of obtained graft copolymers were investigated. The molar ratio of PLA were calculated as 72.7 (PP-g-PLA-1) and 78.4% (PP-g-PLA-2) by H-1-NMR spectroscopy. The water contact angle (WCA) values of PP-g-PLA-1 (81(o) +/- 1.3) and PP-g-PLA-2 (75(o) +/- 1.6) copolymers were compared with commercial chlorinated polypropylene (PP-Cl) (90(o) +/- 1.0), suggesting a more hydrophilic nature of desired graft copolymers produced. Conversely, the enzymatic biodegradation studies revealed that the weight losses of graft copolymers were determined as 13.6 and 22.1%, which is about 4% for commercial PP-Cl sample. Thus, it was clear that this simple and facile method was effective in promoting biodegradation of commercial polypropylene and attractive particularly for worldwide environmental remediation goals. (c) 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 2595-2601
Açıklama
Altinkok, Cagatay (Trakya author)
Anahtar Kelimeler
Block Copolymers, Biodegradable, Poly(propylene) (PP), Azide-Alkyne Cycloaddition, Surface Modification, Graft-Copolymers, Polypropylene, Polyethylene, Combination, Polymer, Thiol, Films, Acid
Kaynak
Journal of Polymer Science Part A-Polymer Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
N/A
Cilt
56
Sayı
22
Künye
Acik, G., Altinkok, C., & Tasdelen, M. A. (2018). Synthesis and characterization of polypropylene‐graft‐poly (l‐lactide) copolymers by CuAAC click chemistry. Journal of Polymer Science Part A: Polymer Chemistry, 56(22), 2595-2601.
