Study on pH-sensitive and thermosensitive polymer networks containing polyacetal segments

Synthesis and characterization of pH-sen

Synthesis and characterization of pH-sensitive networks containing degradable poly(1,3-dioxolane) segments

✍ Juan Du; Yuxing Peng; Tingting Zhang; Xiaobin Ding; Zhaohui Zheng 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 163 KB 👁 2 views

pH sensitivity and ion sensitivity of hy

pH sensitivity and ion sensitivity of hydrogels based on complex-forming chitosan/silk fibroin interpenetrating polymer network

✍ Xin Chen; Wenjun Li; Wei Zhong; Yuhua Lu; Tongyin Yu 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 151 KB 👁 2 views

A novel natural polymer blend, namely, a semi-interpenetrating polymer network (semi-IPN) composed of crosslinked chitosan with glutaraldehyde and silk fibroin was prepared. The FTIR spectra of the semi-IPN manifested that the chitosan and silk fibroin had a strong hydrogen-bond interaction and form

Drug releasing characteristics of thermo

Drug releasing characteristics of thermo- and pH-sensitive interpenetrating polymer networks based on poly (N-isopropylacrylamide)

✍ Young Ho Lim; Dukjoon Kim; Doo Sung Lee 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 214 KB 👁 2 views

Interpenetrating polymer networks (IPNs) of poly(N-isopropylacrylamide)/ polyurethane (PNIPAAm/PU) and poly(N-isopropylacrylamide)/poly(acrylic acid) (PNI-PAAm/PAA) were synthesized to investigate the swelling and drug releasing behavior. The presence of urethane network in PNIPAAm/PU IPNs improved

Synthesis and swelling properties of pH-

Synthesis and swelling properties of pH-sensitive hydrogels based on chitosan and poly(methacrylic acid) semi-interpenetrating polymer network

✍ Shilan Chen; Mingzhu Liu; Shuping Jin; Yong Chen 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 212 KB 👁 2 views

Studies on chitosan and poly(acrylic aci

Studies on chitosan and poly(acrylic acid) interpolymer complex. I. Preparation, structure, pH-sensitivity, and salt sensitivity of complex-forming poly(acrylic acid): Chitosan semi-interpenetrating polymer network

✍ Hanfu Wang; Wenjun Li; Yuhua Lu; Zhiliang Wang 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 61 KB 👁 2 views

Studies on chitosan and poly(acrylic aci

Studies on chitosan and poly(acrylic acid) interpolymer complex. I. Preparation, structure, pH-sensitivity, and salt sensitivity of complex-forming poly(acrylic acid): Chitosan semi-interpenetrating polymer network

✍ Hanfu Wang; Wenjun Li; Yuhua Lu; Zhiliang Wang 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 180 KB 👁 2 views

A novel semi-interpenetrating polymer network (semi-IPN) membrane composed of crosslinked chitosan(cr-CS) and poly(acrylic acid) (PAA) was prepared. Evidence from infrared spectra proved the formation of polyelectrolyte complex through electrostatic interaction between NH / 3 groups from CS and COO