Amino-terminated polypropylene and preparation method thereof

A technology of amino-terminated polypropylene and hydroxyl-terminated polypropylene, which is applied in the field of amino-terminated polypropylene and its preparation, and can solve problems such as reduced catalytic polymerization efficiency

Active Publication Date: 2010-08-25
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the chain transfer agent used in this method usually needs to be specially synthesized,

Method used

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  • Amino-terminated polypropylene and preparation method thereof
  • Amino-terminated polypropylene and preparation method thereof
  • Amino-terminated polypropylene and preparation method thereof

Examples

Experimental program
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Example Embodiment

The preparation of embodiment 1 amino-terminated polypropylene

(1) Under an inert atmosphere, add 5.0 grams of hydroxyl-terminated polypropylene P-1 and 100 mL of toluene into the reactor, stir at 140 ° C, and add 0.028 mol of pimeloyl chloride after the polymer is completely dissolved (pimelic acid and Thionyl chloride was refluxed at a ratio of 1:2 to generate pimelic acid with acid chlorides at both ends), the reaction temperature was 140°C, and the reaction time was 9 hours. After the reaction was completed, it was treated with anhydrous acetone and dried to obtain Table 2 shows the reaction conditions and the structural characteristics of polypropylene P-1* with acid chloride groups at the end.

(2) Add 3.0 grams of polypropylene P-1* obtained in step (1) and 100 mL of toluene into the reactor, stir at 120 ° C, and after the polymer is completely dissolved, add 0.01 mol of octyldiamine to react for 48 hours, After the reaction, wash with ethanol and dry to obtain amino-t...

Example Embodiment

Example 2-22

The preparation method is the same as in Example 1, only part of the reaction conditions are changed, and the specific reaction conditions and product properties are shown in Table 2 and Table 3.

Table 2 Example 1-22 Preparation and product properties of polypropylene with acid chloride group at the end

Preparation and product performance of table 3 embodiment 1-22 amino-terminated polypropylene

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Abstract

The invention relates to amino-terminated polypropylene, wherein one end of a macromolecular chain carries with an amino group, the structure of the amino-terminated polypropylene accords with to general formula (I). The amino-terminated polypropylene is obtained by reacting a hydroxyl group of hydroxyl-terminated polypropylene with acyl-chlorinated diacid and further reacting the obtained polypropylene which carries an acid acyl chloride group at the terminal with diamine. The amino-terminated polypropylene has strong polarity and has wide application in the fields of polymer blend, composite materials and the like.

Description

Amino-terminated polypropylene and its preparation method technical field The invention relates to an amino-terminated polypropylene and a preparation method thereof. technical background Polyolefin is a material with a wide range of applications, but the molecular chain of polyolefin is completely composed of saturated hydrocarbons and lacks polar functional groups. The adhesion, printing and dyeing properties of polyolefin and the compatibility with other polymers or fillers are poor, which limits the application of polyolefin in many aspects. Therefore, it is of great practical significance to introduce polar functional groups into polyolefins to realize the functionalization of polyolefins. However, the chemical stability of polyolefin chains makes the functionalization of polyolefins more difficult, and the functionalization of polyolefin end groups is more difficult than the functionalization of polyolefin side chains. However, since the terminal functional group o...

Claims

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Application Information

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IPC IPC(8): C08F110/06C08F8/32
Inventor 贾军纪董金勇朱博超牛慧徐人威王霞黄安平许云波王丹丹任峰孙卫国
Owner PETROCHINA CO LTD
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