Surface modification of polypropylene. I. Surface enrichment of poly(ethylene glycol) on polypropylene/poly(ethylene glycol) blends

Chen, Hanjia; Shi, Xuhua; Zhu, Yongfa; Zhang, Yi; Xu, Jiarui

doi:10.1002/vnl.20140

Cited by 8 publications

(14 citation statements)

References 12 publications

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“…10 In this work, extensions of their studies were facilitated by preparation the hydroxyl-and methoxyl-terminated side chain graft copolymer and formation the blend films by melt-cast to avoid the effect of solvent. The results listed in Table III shown that the end group of copolymer had significant effect on surface selectivity.…”

Section: Effect Of Molecular Weight Of Peg In Ppw-g-peg On Surface Enmentioning

confidence: 99%

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Surface functionalization of polypropylene by entrapment of polypropylene‐grafted‐poly(ethylene glycol)

Chen

Shi

Zhu

et al. 2009

J of Applied Polymer Sci

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A surface functionalization polypropylene was prepared by entrapment a copolymer of polypropylenegrafted-poly(ethylene glycol) into polypropylene. The effects of structure of copolymer, contact dies, and content of modifiers were studied. The results of attenuated total reflection infrared spectroscopy(ATR-FTIR) and contact angle measurements indicated that PP-g-PEG could preferably diffuse onto the surface and effectively increase the hydrophilicity of PP. PPw-g-PEG with lower PEG contents, lower molecular weight of PPw and PEG had better selective enrichment on the surface of PP blend film. By grafting of PEG-OH onto the MPP, PP macromolecular surface modifier with better solvent-resistance than that of PEG can be achieved.

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Section: Effect Of Molecular Weight Of Peg In Ppw-g-peg On Surface Enmentioning

confidence: 99%

“…In our prior research, 10 we have found that PEG can be enriched on the surface of PP and improve its hydrophilicity. However, due to the weak interaction between PEG and PP, PEG was found to be detracted easily from the surface when the modified material was contact with water and other polar chemical solvents.…”

Section: Introductionmentioning

confidence: 98%

Surface functionalization of polypropylene by entrapment of polypropylene‐grafted‐poly(ethylene glycol)

Chen

Shi

Zhu

et al. 2009

J of Applied Polymer Sci

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“…In our prior work [4], PEG has been used to improve PP hydrophilicity, and we have demonstrated that it can preferably aggregate on the surface of blends films. The transport of PEG in polymer media can be influenced by many factors, such as the annealing temperature and distribution of PEG, as well as the topology of PP amorphous fraction, which affected the surface enrichment of PEG on PP.…”

Section: Introductionmentioning

confidence: 96%

Determination of the diffusion of poly(ethylene glycol) in polypropylene using ATR-FTIR

Chen

Shi

Zhu

et al. 2009

Front. Chem. Eng. China

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The diffusion of poly(ethy1ene glycol) (PEG) in polypropylene (PP) was investigated using attenuated total reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), Atomic Force Micrograph (AFM), and Scanning Electron Microscopy (SEM). It has been found that the diffusion of PEG in PP was greatly affected by the annealing temperature and the molecular weight of PEG. Higher temperature was in favor of PEG to diffuse in PP with fast velocity and reached diffusion equilibrium with shorter time. PEG with higher molecular weight was distributed in PP with bigger phase domains and had lower diffusivity, which resulted in its lesser enrichment on the surface of the PP blend film.

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“…Blending with additives which migrate to and alter the surface properties has been recognized as a viable method to overcome those disadvantages . Polymer blending is a cheaper and faster way to induce surface enrichment.…”

Section: Introductionmentioning

confidence: 99%

“…Surface enrichment with PEG increased with an increase in PEG molecular weight but decreased with an increase in concentration. Xu et al . studied the diffusion of PEG in PP.…”

Section: Introductionmentioning

confidence: 99%

Improving the antifouling properties of polypropylene surfaces by melt blending with polyethylene glycol diblock copolymers

Garle

White

Budhlall

2017

J of Applied Polymer Sci

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Protein-resistant polyethylene-block-poly(ethylene glycol) (PE-b-PEG) copolymers of different molecular weights at various concentrations were compounded by melt blending with polypropylene (PP) polymers in order to enhance their antifouling properties. Phase separation of the PE-b-PEG copolymer and its migration to the surface of the PP blend, was confirmed by attenuated total reflectance-Fourier transform infrared, X-ray photoelectron spectroscopy, and static water contact angle measurements. Enrichment of PEG chains at the surface of the blends increased with increasing PE-b-PEG copolymer concentration and molecular weight. The PP blends compounded with PE-b-PEG copolymer having the lowest molecular weight (875 g mol 21 ), at the lowest concentration (1 wt %), gave the lowest bovine serum protein adsorption (30% less) compared to that of neat PP. At higher concentrations (5 and 10 wt %), and higher molecular weights (920, 1400, and 2250 g mol 21 ), the PE-b-PEG copolymers leached-out resulting in protein adsorption comparable to that of neat PP.Polypropylene (PP) is a widely used material for biomedical applications due to its many desirable properties, including low cost, ease of processing, and sterilization. 13 It finds extensive use in the biomedical field 14 as filtration membranes, 15 textiles/fabrics, and medical implants such as surgical meshes 16,17 and vascular prostheses. 18 These applications necessitate extraordinary wettability and protein repellency. 19 Wettability results from hydrophilic functional groups binding or interacting via H-bonding to water (H 2 O) molecules, leading to the formation of a highly hydrated layer of H 2 O molecules surrounding the hydrophilic groups. This hydrated layer results in steric hindrance to any incoming protein molecules, preventing their adsorption. 20Additional Supporting Information may be found in the online version of this article.

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Surface modification of polypropylene. I. Surface enrichment of poly(ethylene glycol) on polypropylene/poly(ethylene glycol) blends

Cited by 8 publications

References 12 publications

Surface functionalization of polypropylene by entrapment of polypropylene‐grafted‐poly(ethylene glycol)

Surface functionalization of polypropylene by entrapment of polypropylene‐grafted‐poly(ethylene glycol)

Determination of the diffusion of poly(ethylene glycol) in polypropylene using ATR-FTIR

Improving the antifouling properties of polypropylene surfaces by melt blending with polyethylene glycol diblock copolymers

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