Abstract Biodegradable polycaprolactone (PCL) has been widely applied as a scaffold material in tissue engineering. However, the PCL surface is hydrophobic and adsorbs nonspecific proteins. Some traditional antifouling modifications using hydrophilic moieties have successful but inhibit cell adhesion, which not ideal for The modified with bioinspired zwitterionic poly[2‐(methacryloyloxy)ethyl choline phosphate] (PMCP) via surface‐initiated atom transfer radical polymerization to improve...

Abstract In this work, maleic anhydride (MAH) was grafted onto chlorinated polyvinyl chloride (CPVC) with high chlorine content (66 wt%) via in‐situ chlorinating graft copolymerization (ISCGC) to obtain the material improved mechanical strength, softening point, and thermal stability of material. The structure product (CPVC‐cg‐MAH) characterized by FTIR, 1 H NMR, GPC, UV. CPVC‐cg‐MAH contains less vinylidene (CCl 2 ) units double bond than corresponding CPVC. Meanwhile, number–average...

Abstract A new process of graft copolymerization poly(vinyl chloride) (PVC) and polyethylene (PE) with other monomers was developed. The grafted chlorinated (CPVC) (CPE) were synthesized by in situ chlorinating (ISCGC) characterized. Convincing evidence for grafting the structure copolymers obtained using FT‐IR, 1 H‐NMR, gel permeation chromatography (GPC), vulcanized curves. Their mechanical properties also measured. results show that products have different molecular from those prepared...

Abstract This paper discusses the structure and mechanism of maleic anhydride (MAH) grafted onto isotactic polypropylene (iPP) via in situ chlorination graft copolymerization (ISCGC). The molecular iPP was characterized using 1 H NMR 13 C spectroscopy, viscosity‐average weight gel content. un‐grafted MAH present reaction system investigated Fourier transform infrared spectroscopy order to explore grafting on iPP. main side‐reactions, including chain scission crosslinking, during were...

Abstract Blends of poly(vinyl chloride) (PVC) and chlorinated polyethylene‐chlorinating graft‐hydroxy ethyl acrylate copolymer (CPE‐ cg ‐HEA) were prepared. CPE‐ ‐HEA, as toughening modifier, is a graft with backbone polyethylene (CPE) branched chains poly(2‐hydroxy acrylate) (PHEA). Compared PVC/CPE, ‐HEA demonstrated better effects on the blends in tensile strength, elongation at break, impact strength. Particularly, compared to PVC/CPE PVC/CPE‐cg‐HEA 5 phr CPE‐cg‐HEA showed an increases...

Biomedical implant mimicking the physiological extracellular matrix (ECM) is a new strategy to modulate cell microenvironment improve integrity and longevity. However, biomimicking ECM suffers from low sensitivity pathological change efficiency restore state in vivo. To overcome these problems, reactive oxygen species (ROS) K+ dual-responsive micro-/nanofibers that encapsulate ascorbic acid-2-glucoside (AA-2G) are fabricated on an elastomer substrate with electrospinning mimic ECM. The based...

Maleic anhydride was grafted onto high chlorinated polyethylene made of low density (LHCPE) prepared from by <italic>in situ</italic> chlorinating graft copolymerization, to improve the adhesion.

Abstract This article discusses a convenient chemical approach named in situ chlorination graft copolymerization (ISCGC) to prepare epoxy functionalized isotactic polypropylene (iPP) with unique structure. method was carried out the gas‐solid state, and chlorine used as radical initiator well terminate agent. The effect of influence factors on structure PP investigated, it determined by levels grafted GMA moieties. results showed that modified could obtain higher grafting level....

Abstract Highly chlorinated polyethylene‐graft‐methyl methacrylate (HCPE‐g‐MMA; HCPE with chlorine contents &gt; 60%), obtained by a mechanochemistry reaction, is discussed in detail. A two‐roll mill was used the process. The reaction conditions affecting structure of HCPE‐g‐MMA copolymers were measured terms calculation graft efficiency (GE), degree (GD), and copolymerization rate/homopolymerization rate ( R c / h ) 1 H‐NMR spectroscopy. Based on these results, it concluded that HCPE,...

An emulsifier-free emulsion was synthesized via the preemulsified polymerization, with styrene (St), butyl acrylate(BA), and ammonium allyloxtmethylate nonylphenol ethoxylates sulfate (DNS-86) as polymerizable emulsifier. The influences of reaction temperature time, DNS-86 amount on polymerization were investigated, then most suitable polymerizing conditions obtained, semi-continuous method used, T=80°, t = 5 h, dosage 2% total monomers mass. analysis profiles IR, NMR, Laser particle size...

A graft copolymer, composed of maleic anhydride as side group and chlorinated polyvinyl chloride backbone, was prepared via in situ chlorinating copolymerization. The effect degree the copolymer on chain structure is discussed through proton nuclear magnetic resonance. results differential scanning calorimetry thermogravimetic analysis showed glass transition temperature did not change with increase degree, but thermal stability product improved much degree. gel content measurements...

Abstract A graft copolymer, composed of malefic anhydride as side group and high-density polyethylene backbone, was synthesized by a new method, in-situ chlorinating copolymerization. The result Fourier Transform Infrared scans indicated the existence even if chlorine content products low (about 3%). Reactive degree anhydridisation (AD), which up to 1.4 wt%, measured chemical titration. crystal behavior copolymer characterized X-Ray diffraction differential scanning calorimetry. results gel...

Abstract In the present work, preparation of CPVC carboxylate ionomer is explored. First, a graft copolymer, composed polyacrylic acid as branched chains and chlorinated polyvinyl chloride backbone, was synthesized by in-situ chlorinating copolymerization. Second, groups copolymer were neutralized sodium hydroxide in order to prepare ionomer. The determined Fourier transform infrared absorption spectrometry, differential scanning calorimetry, dynamic mechanical analysis, properties. results...

Abstract In this study, a novel cyclodextrin derivative, i.e., zwitterionic choline phosphate (CP)‐functionalized β‐cyclodextrin (CP‐β‐CD) is successfully synthesized by click chemistry reaction. CP‐β‐CD has excellent cell‐membrane‐targeted ability because of the CP group can bind to (PC) in cell membrane and promote cellular uptake. Due introduction on β‐CD, it disrupts hydrogen network between natural β‐CD molecules. Meanwhile, water solubility improved dramatically 816 mg mL −1 , which...

ABSTRACT We substituted the small molecular model compound α-pinene of butyl rubber (IIR) to simulate reaction between sodium hydride (NaH) and isoprene structural unit IIR. Meanwhile, we provided reference data on mechanism degree for modified IIR with an active carboanion-based center. In this way, possible chemically pathways were studied. 1H nuclear magnetic resonance results showed that have a very high similarity. NaH can not only produce substitution in allylic position α-pinene, but...

A new series of amphiphilic graft-copolymers, composed poly(vinyl chloride) (PVC) backbones and poly(ethylene oxide) side chains, was synthesized by chemical modification PVC. The synthesis based on the reaction between chlorine in PVC (polymerization degree 700) sodium salt polyethylene glycol (PEG). PEGs with molecular weights 200 600 were used. graft polymers characterized IR gel permeation chromatography parameters such as average numbers grafting chains calculated well percent. PEG...