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  • Engineering Materials Science Question?

    Polybutadiene (PB) and polystyrene (PS) are immiscible polymers. In other words, they do not

    like to mix but instead phase separate whenever possible. Suppose two specimens are heated to

    a temperature 200 oC where both PS and PB are molten. One specimen consists of 10 g of pure

    homopolymer PS (Mw=50,000 g/mole) mixed with 10 g of PB (Mw=50,000 g/mole). The other

    specimen consists of 20 g of a PS-PB diblock copolymer where the PS block is 50 wt% of each

    diblock molecule. When these specimens are cooled to room temperature, how might the spatial

    distribution of PS-rich and PB-rich phases differ? Briefly explain

    1 AnswerEngineering1 decade ago

  • Je recherche Daendy Jean-Francois?

    Y a il n'importe qui qui connaît une personne avec dernier

    Jean-Francois nommé dans Orange, New jersey ou Fait n'importe qui connaissent une personne avec l'adresse

    daendycool@yahoo.fr de E-mail

    2 AnswersYahoo Questions/Réponses2 decades ago

  • "the power of unity" what does this quote mean?

    2 AnswersOther - Business & Finance2 decades ago