As an important part of cultural heritage, paper relics have historical, scientific and humanistic values. However, a large number are suffering from aging, mildew, yellowing, cracks, embrittlement other threats, or even completely damaged. To enhance the strength prolong life relics, novel CMC-acrylate-OVPOSS graft copolymer was synthesized with carboxymethyl cellulose (CMC), methyl methacryla...

A low-intensity (6 W) light-emitting diode (LED) effectively activated an organotellurium chain transfer agent and the dormant species, promoting well-controlled radical polymerization. The use of the LED provided many advantages over the previously reported high-intensity Hg lamp, including high energy efficiency during the polymerization, and easy availability of the low-cost light source. St...

Copolymerization of ethylene with polar vinyl monomers to yield functionalized and possibly easier recyclable polyolefins is challenging it currently being pursued mainly using expensive Pd-based catalysts. Herein, the copolymerization methyl acrylate (MA) achieved by dibenzocycloheptyl-substituted aryliminopyridyl Ni(II) complexes, affording copolymers selectively in-chain incorporated MA unit...

A fascinating aspect of the dynamics of supercooled liquids and polymers is the degree to which the reorientational or segmental relaxation time, τR, governs various properties. 1,2 For example, the shape of the relaxation peak, commonly reflected in the Kohlrausch stretch exponent, the state points associated with the dynamic crossover, and the dynamic correlation volume for many glass formers...