Macroporous silica using a “sticky” Stöber process

@inproceedings{Cademartiri2009MacroporousSU,
  title={Macroporous silica using a “sticky” St{\"o}ber process},
  author={Rebecca Cademartiri and Michael A Brook and Robert P. Pelton and John D Brennan},
  year={2009}
}
The generation of macroporous silica structures using a sol–gel process generally requires the presence of high molecular weight, water-soluble polymers. We demonstrate that significantly lower molecular weight poly(ethylene glycol) (PEG) polymers can drive a particle aggregation process to generate macroporous silica. Compared to unfunctionalized PEGs (HO–PEG–HO, molecular weight > 10 000 g mol−1), PEG polymers with allyl (A–PEG–A) or silyl end groups (CH2)3Si(OEt)3 (Si–PEG–Si), with molecular… CONTINUE READING

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