Synthesis and characterization of the ABA-type poly(ester-ether-ester) block copolymers

Synthesis and characterization of brush-type polyβ-alanine-grafted polymethyl methacrylate using "grafting through" method

“…As stated for many block/graft copolymers Fig. 2 1 H-NMR spectra of a PBA macromonomer (in TFAd) and b poly(MMA-g-BA) brush-type graft copolymer (in TFA/a few drops of CDCl 3 ) (Savaş et al 2021bÇatıker et al 2020;Meyvacı et al 2021;Jamshid 2008;Thanomsilp and Phetthianchai 2012), the components of the poly(MMA-g-BA) showed decomposition behavior as though they were alone.…”

Introduction of 3‐Hydroxypropionate Moieties to Polystyrene by “Graft Through” Strategy

“…The TGA and DTG thermograms of P3HPS2 and P3HPS3 samples in Figure 4 have two steps of thermal decomposition. The bands observed at lower temperatures (273 °C and 282 °C) may be attributed to the decomposition of the oligomeric 3HP branches [30] . The mass loss at the first stage of the decomposition for the P3HPS2 sample was observed as 10.3 % (wt), which is equal to the mass percent of the P3HP feed in the polymerization reaction.…”

Syntheses And Characterizations Of Poly(ε-Caprolactone-b-Ethylene Glycol Methyl Ether) Block Copolymers Via Ring-Opening Polymerization And "Click" Chemistry

“…In the case of poly(RCL-b-mEG), PCL and PmEG include individual Td. As stated for many copolymers (Jamshid, 2008;Thanomsilp and Phetthianchai, 2012;Çatıker, et al, 2020;Savaş et al, 2020), units in a copolymer show Td as though units are alone. TGA demonstrated fascinating characteristics of copolymer such as continuous weight loss starting from about 200 o C to nearly 420 o C with derivatives at 306 o C and 411 o C (Figure 3.C).…”

“…Polyethylene glycol (PEG) which is one of the most used hydrophilic segment (Adams, et al, 2003) is preferred in block copolymers possibly because it has got unique biocompatible properties (Çatıker, et al, 2020). PEG-based polymers are desirable materials of biomedical, industrial, and chemicals applications thanks to PEG's unique features (Erciyes et al, 1992;Adams, et al, 2003;Riess, 2003;Gacal, et al, 2006;Öztürk and Hazer, 2010;Çatıker, et al, 2020). Syntheses of block or graft copolymers were fullfilled because of their enuque properties (Ruzette and Leibler, 2005;Öztürk, et al, 2011;Altintas et al, 2011;Bolton and Rzayev, 2012;Öztürk, Kayğın, et al, 2016;Öztürk, Cakmak et al, 2019;Bağlan et al, 2018;.…”

“…The capability of amphiphilic block copolymers is owing to their chemical composition, which is described by a hydrophilic block chemically related to a hydrophobic block (Çatıker, et al, 2020). The ring-opening polymerization (ROP) technique was firstly carried out by Carothers et al for lactones, cyclic anhydrides and carbonates (Hizal, et al, 2005;Coulembier, et al, 2006;Çatıker, et al, 2020;). ROP technique was widely used in the syntheses of new types of copolymers (Coulembier, et al, 2006;Göktaş et al, 2014;Öztürk, Yavuz, et al, 2016;.…”