Temperature‐induced phase transition of poly(N,N‐dimethylaminoethyl methacrylate‐co‐acrylamide)

Molecular tailoring of thermoreversible copolymer gels: Some new mechanistic insights

“…In apparent contradiction to previous work, 16,17 our copolymer gels show that the heat associated with the volume transition decreases with an increase in the hydrophobic alkyl chain length. Our theoretical predictions of the heat of demixing are also in qualitative agreement with experimental observations.…”

Self-Assembly and Dual-Stimuli Sensitivities of Hydroxypropylcellulose-graft-poly(N,N-dimethyl aminoethyl methacrylate) Copolymers in Aqueous Solution

“…The LCST of the HPC- g -PDMAEMA shifts to lower temperature than that of HPC is probably due to the formation of hydrogen bonds between the hydroxyl groups on HPC backbone (as a hydrogen bond donor) and the dimethylamino groups or the ester groups in PDMAEMA (as a hydrogen bond acceptor), which screens the hydrophilic groups in HPC from exposing to water and results in a hydrophobic contribution to the LCST of HPC. Similar results have been reported by Cho and Yuk . The above results demonstrate that the phase transition mechanism of the HPC 0.1 - g -PDMAEMA 20 aqueous solution differs from that of HPC.…”

Thermoresponsive copolymers of methacrylic acid and poly(ethylene glycol) methyl ether methacrylate

“…As shown in Figure 8, the cloud points for the copolymers of these two monomers are lower than those of the homopolymers for almost all compositions, because of the hydrogen bonding between acid and ether units. Similar effects have been observed in graft copolymers composed of NIPAM and acrylic acid,6 and copolymers of 2‐(dimethylamino)ethyl methacrylate with either acrylamide30 or N ‐ethylacrylamide 31…”