(FR2764606-A1)      Production of an ion-exchange membrane comprising a polymer film comprises activating the film, grafting dissolved styrene and chloromethyl styrene on the film and functionalising the grafted groups by sulphonation using a sulphonation agent and then hydrolysing using a basic solution to give sulphonate groups on the styrene and alcohol groups on the chloromethyl styrene. The above obtained membrane, a separator and a fuel cell for alcohol-based fuel incorporating it are also claimed and the production of the separator by metallising the above membrane on both sides.    USE -   Used as a separator in a fuel cell (claimed).    ADVANTAGE -   Good mechanical properties, particularly electron transport and electrochemical activity and low transmission of ethanol.    (JP11121020-A)      Production of an ion-exchange membrane comprising a polymer film comprises activating the film, grafting dissolved styrene and chloromethyl styrene on the film and functionalising the grafted groups by sulphonation using a sulphonation agent and then hydrolysing using a basic solution to give sulphonate groups on the styrene and alcohol groups on the chloromethyl styrene. The above obtained membrane, a separator and a fuel cell for alcohol-based fuel incorporating it are also claimed and the production of the separator by metallising the above membrane on both sides.    USE -   Used as a separator in a fuel cell (claimed).    ADVANTAGE -   Good mechanical properties, particularly electron transport and electrochemical activity and low transmission of ethanol.    (BE1011218-A3)      Production of an ion-exchange membrane comprising a polymer film comprises activating the film, grafting dissolved styrene and chloromethyl styrene on the film and functionalising the grafted groups by sulphonation using a sulphonation agent and then hydrolysing using a basic solution to give sulphonate groups on the styrene and alcohol groups on the chloromethyl styrene. The above obtained membrane, a separator and a fuel cell for alcohol-based fuel incorporating it are also claimed and the production of the separator by metallising the above membrane on both sides.    USE -   Used as a separator in a fuel cell (claimed).    ADVANTAGE -   Good mechanical properties, particularly electron transport and electrochemical activity and low transmission of ethanol.    (NL1009419-C2)      Production of an ion-exchange membrane comprising a polymer film comprises activating the film, grafting dissolved styrene and chloromethyl styrene on the film and functionalising the grafted groups by sulphonation using a sulphonation agent and then hydrolysing using a basic solution to give sulphonate groups on the styrene and alcohol groups on the chloromethyl styrene. The above obtained membrane, a separator and a fuel cell for alcohol-based fuel incorporating it are also claimed and the production of the separator by metallising the above membrane on both sides.    USE -   Used as a separator in a fuel cell (claimed).    ADVANTAGE -   Good mechanical properties, particularly electron transport and electrochemical activity and low transmission of ethanol.