Modified polypropylene and process for producing same

A modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] of 0.51 to 0.88, determined by 13C-NMR analysis, and weight-average molecular weight (Mw) of 5,000 to 400,000, and grafted with units represented by the general formula (1):

• General formula (1)
• (wherein, R1 is H or an alkyl group of 1 to 10 carbon atoms;
• R2 is OR4, or a halogen selected from the group consisting of Cl, Br, F and I, or N(R1)2 or R5—N(R1)2 group;
• R3 is H or —COR2 group;
• R4 is H or an alkyl group of 1 to 10 carbon atoms, which can have a halogen;
• aromatic group, which can have an alkyl substituent;
• —(CH2)a—O—P(O)(OR1)2 or —(CH2)a—O—P(O)(O−)(O—(CH2)b—N+R13) (“a” and “b” are each an integer of 1 to 5);
• alkali metal M selected from the group consisting of Li, Na and K;
• alicyclic hydrocarbon of 5 to 10 carbon atoms;
• glycidyl group;
• R5—COCR1═CH2;
• R5OR1;
• R5Si(OR1)3 or R5—NCO;
• R5 is an alkylene group of 1 to 10 carbon atoms or —[(CH2)q-O-]r-(“q” and “r” are each an integer of 1 to 5);
• and
• “n” is 1 to 500, wherein totaled number is 2 to 500, when there are 2 or more units represented by the general formula (1) in one polypropylene molecule).