Determination of Cloud Point Temperatures of a Series of Novel Poly(2-hydroxypropyl acrylate)-based Copolymers

Savaş B., Çatıker E., Öztürk T., Karanfil A.

Journal of Polymers and the Environment, cilt.34, sa.1, 2026 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 1
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1007/s10924-025-03726-x
  • Dergi Adı: Journal of Polymers and the Environment
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Chimica, Compendex, Environment Index, Geobase, Greenfile
  • Anahtar Kelimeler: 2-hydroxypropyl acrylate, Cloud point temperature, Copolymer, Free-radical polymerization, Thermo-responsive polymer
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

This study determined the cloud point temperatures of a series of poly(2-hydroxypropyl acrylate) (PHPA) copolymers prepared by introducing various acrylamide derivatives using turbidimetry. This study aims to demonstrate the tunability of the cloud point temperatures of HPA-based copolymers by changing the composition of the acrylamide derivative comonomers. N-isobutoxymethyl acrylamide (IBMAAm), N-(3-methoxypropyl)acrylamide (MPAAm), acrylamide (AAm), N-(2-hydroxyethyl)acrylamide (HEAAm), and methacrylamide (MAAm) were used as comonomers to obtain copolymers of PHPA and acrylamide derivatives with different compositions. The cloud point temperatures of the copolymers based on PHPA were found to range from 7.5 to 48.2 °C, depending on the H-bond capacity and quantity of the comonomers in the copolymer. All copolymers exhibited cloud point temperatures higher than the homopolymer of HPA, except those with IBMAAm as the comonomer. Increasing the relative amount of the acrylamide derivative moiety in a copolymer type was found to increase the cloud point temperature, except for copolymers with IBMAAm. AAm and HEAAm were determined to be the most effective comonomers for elevating the cloud point temperature, possibly due to their hydrogen bond capacities and superior solubility in an aqueous medium.