Surface characterization of binary grafting of AAc/NIPAAm onto poly(tetrafluoroethylene) (PTFE)

Composition and properties of porous blend membranes containing tertiary amine based amphiphilic copolymers with different sequence structures

“…There are four types of methods for functional surface construction, including surface-coating [13,14], surface-grafting [15][16][17][18][19], copolymer directly formation [20][21][22], and blending [6,7,[23][24][25][26][27]. Surface coating is an efficient and easy-to-operate method that directly covers a functional layer onto the membrane surface by physical adsorption interaction.…”

“…However, the functional layer constructed by surface coating is commonly unstable and may be washed away during the operation process. In surface grafting, functionalized groups or polymer chains can be grafted to the membrane surface to endow the membrane with various properties with the help of plasma [15], high energy electron beam [16], UV photo irradiation [17], thermal-induced polymerization [18], or surface living/controlled polymerization [19]. Although the membranes formed using these two methods show outstanding performance, the extra modification step and the great variation in the membrane morphology make these methods unsuitable for industry-scale production.…”

Immobilization of lysozyme on poly(N-isopropyl acrylamide)/2-hydroxyethyl methacrylate copolymer core–shell gel beads

“…Temperature dependence on the radii and molar mass of PGBH Many researchers have reported that copolymers consisting of NIPAAm and AAc show pH and AAc content dependencies of the LCST [12,[23][24][25]. As reported by Ito et al [8] and others [12,20], the PGBH 0 particle used as the core of the PGBH particles has been shown to exhibit thermo-responsive properties.…”

Tribological behavior of polytetrafluoroethylene coatings based on LY12 substrates in the space environment

“…Increasing dose results in a change-over of the damage mechanism to cross-linking. Oshima et al [4][5] found that PTFE was extremely sensitive to radiation, resulting from the chain scission of PTFE main chain, while the PTFE could be crosslinked upon irradiation at its melting temperature under an oxygen-free condition in the film state, and the crosslinked PTFE film was quite stable towards the high-energy radiation and easily underwent the grafting modification (compared with uncrosslinked PTFE film [6][7][8][9] ). Allayarov et al [10] found that the helical structure of individual perfluroalkanes readily distorted on removal of a fluorine and this would have an impact on the overall structure of the material.…”