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Synthesis and properties of ultralow dielectric porous polyimide films containing adamantane
10.1002/pola.28928 2017-12-26 ABSTRACT A series of novel ultralow dielectric porous polyimide (PI) films containing adamantane groups was prepared via the thermolysis of polyethylene glycol (PEG) oligomers mixed into PI matrix. Scanning electron microscopy results indicated that the porou... |
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Stimuli-responsive amphiphilic PDMAEMA-b-PLMA copolymers and their cationic and zwitterionic analogs
10.1002/pola.28931 2017-12-22 ABSTRACT In this work, the synthesis and characterization of novel amphiphilic diblock copolymers of poly(2-dimethylamino ethyl methacrylate)-b-poly(lauryl methacrylate), PDMAEMA-b-PLMA, using the reversible addition-fragmentation chain transfer (RAFT) polyme... |
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Crosslinked anion exchange membranes with connected cations
10.1002/pola.28935 2017-12-22 ABSTRACT The selective transport of ions has crucial importance in biological systems as well as modern-day energy devices, such as batteries and fuel cells, and water purification membranes. Control over ion movement can be exerted by ligation, ion channel d... |
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Ring opening metathesis polymerization (ROMP) and thio-bromo “click” chemistry approach toward the preparation of flame-retardant polymers
10.1002/pola.28939 2017-12-22 ABSTRACT This contribution describes our recent efforts geared toward the use of a general, thio-bromo “click” reaction as a post-polymerization method for the preparation of flame-resistant polymeric materials. α-bromo ester-containing polymers could easily ... |
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Gel forming waterborne dispersion polymerization of sodium p-styrene sulfonate with glycidyl methacrylate
10.1002/pola.28936 2017-12-22 ABSTRACT Water soluble monomer like sodium p-styrene sulfonate (SSS) is copolymerized with hydrophobic and reactive monomer glycidyl methacrylate (GMA). The polymerization proceeds as dispersion and forms gels. The gel forming nature prevails even with other ... |
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Controlled random copolymerization of rac-lactide and ɛ-caprolactone by well-designed phenoxyimine Al complexes
10.1002/pola.28932 2017-12-22 ABSTRACT The random copolymers poly(LA-ran-CL) have improved properties of degradability, mechanical strength, elasticity, and permeability over the PLA and PCL homopolymers. However, the synthesis of such copolymers is still a great challenge in polymer chem... |
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Cationic half-sandwich scandium complex for the synthesis of polyisobutylene with high molecular weight under mild conditions
10.1002/pola.28916 2017-12-22 The half-sandwich rare earth metal complex, [(C5Me4SiMe3)Sc(CH2SiMe3)2THF]/[Ph3C][B(C6F5)4], is an effective cationic initiator system to afford high-molecular-weight polyisobutylene and isobutylene–isoprene copolymer at relatively mild conditions. |
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O-Fmoc-protected 3-hydroxy-2-butenoate derivatives as thermal latent curing agents for thermosetting epoxy resins
10.1002/pola.28926 2017-12-19 To improve the stability of epoxy resin-imidazole compositions, the authors have developed O-Fmoc-protected 3-hydroxy-2-butenoate derivatives to generate an imidazole via thermal deprotection and subsequent β-elimination reactions. The latent curing agents ha... |
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Substituent effect on supercapacitive performances of conducting polymer-based redox electrodes: Poly(3′,4′-bis(alkyloxy) 2,2′:5′,2″-terthiophene) derivatives
10.1002/pola.28927 2017-12-19 ABSTRACT This work reports the synthesis of novel poly(3′,4′-bis(alkyloxy)terthiophene) derivatives (PTTOBu, PTTOHex, and PTTOOct) and their supercapacitor applications as redox-active electrodes. The terthiophene-based conducting polymers have been derivatiz... |
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RAFT synthesis of polystyrene-block-poly(polyethylene glycol monomethyl ether acrylate) for zinc phthalocyanine-loaded polymeric micelles as photodynamic therapy photosensitizers
10.1002/pola.28929 2017-12-19 ABSTRACT A series of polystyrene-block-poly(polyethylene glycol monomethyl ether acrylate) (PStm-b-PPEGAn) polymers were systematically synthesized as carriers for zinc phthalocyanine (ZnPc) for photodynamic therapy via reversible addition and fragmentation c... |