Synthesis of block-brush terpolymer via one-step RAFT-ROP and grafting to "click" chemistry methods
Polymer Bulletin, cilt.82, sa.9, ss.3991-4004, 2025 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 82 Sayı: 9
- Basım Tarihi: 2025
- Doi Numarası: 10.1007/s00289-025-05688-5
- Dergi Adı: Polymer Bulletin
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC
- Sayfa Sayıları: ss.3991-4004
- Anahtar Kelimeler: Alkyne-terminated PEG, Block-brush terpolymer, Grafting to “click” chemistry, Poly(ɛ-caprolactone-b-4-vinyl benzyl chloride-N3), Reversible addition/fragmentation chain transfer (RAFT)
- Van Yüzüncü Yıl Üniversitesi Adresli: Evet
Özet
In this contribution, well-defined poly(ɛ-caprolactone-b-4-vinylbenzyl-g-ethyleneglycol) [poly(ɛ-CL-b-VB-g-EG)] block-brush terpolymer was prepared via reversible addition/fragmentation chain transfer (RAFT), ring-opening polymerization (ROP) and grafting to “click” chemistry methods. For this purpose, in the first part, a RAFT agent was obtained by the reaction of 3-chloro-1-propanol and ethylxanthic acid potassium salt for the one-step RAFT-ROP polymerization. In the second part, the poly(ɛ-caprolactone-b-4-vinyl benzyl chloride) [poly(ɛ-CL-b-VBC)] block copolymer was prepared by RAFT polymerization of 4-vinyl benzyl chloride, and ROP of ɛ-caprolactone in the presence of RAFT agent in the one-step. In the third part, the poly(ɛ-caprolactone-b-4-vinyl benzyl-N3) (azide-terminated) was obtained from reaction of the poly(ɛ-CL-b-VBC) block copolymer and NaN3. Finally, the poly(ɛ-CL-b-VB-g-EG) block-brush terpolymer was prepared from the reaction PEG-propargyl, which obtained by the reaction of polyethylene glycol (PEG-3000) with propargyl chloride, and poly(ɛ-CL-b-VB-N3) via the grafting to "click" chemistry method. The structure of the final products was characterized by methods such as GPC, 1H-NMR, FT-IR, DSC, and SEM.