Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polydicyclopentadiene/polystyrene interpenetrating polymer network and preparation method thereof

A polydicyclopentadiene, interpenetrating polymer technology, applied in the polydicyclopentadiene/polystyrene interpenetrating polymer network, the field of preparation of the interpenetrating polymer network, to increase flame retardancy, stretch The effect of increasing strength

Active Publication Date: 2012-07-11
HENAN UNIV OF SCI & TECH
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is worth noting that if there is a permanent entanglement in IPNS that cannot be untied, some mechanical properties of IPNS may exceed the corresponding values ​​of the polymers contained in each component.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polydicyclopentadiene/polystyrene interpenetrating polymer network and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The polydicyclopentadiene-polystyrene interpenetrating polymer network of this embodiment is composed of the following components in weight percent: 98.99 parts of polydicyclopentadiene, 1 part of styrene and 0.01 part of divinylbenzene.

[0025] The preparation method of polydicyclopentadiene-polystyrene interpenetrating polymer network of the present invention comprises the following steps:

[0026] (1) Dissolve 1 gram of styrene and 0.01 gram of divinylbenzene in 98.99 grams of dicyclopentadiene at 40°C and stir evenly. After the degassing reaction, use nitrogen protection for later use;

[0027] (2) Under the protection of nitrogen, divide the above solution into two parts A and B, and add 0.647 grams of molybdenum catalyst (the amount added is 1 / 1000 of the molar number of dicyclopentadiene) and 0.01 grams of benzene peroxide to part A Formyl initiator; add 1.8 grams of diethylaluminum chloride (20 times the number of moles of the tungsten catalyst in part A) to pa...

Embodiment 2

[0030]The polydicyclopentadiene-polystyrene interpenetrating polymer network of this embodiment is composed of the following components in weight percentage: 88 parts of polydicyclopentadiene, 10 parts of styrene and 2 parts of divinylbenzene.

[0031] The preparation method of polydicyclopentadiene-polystyrene interpenetrating polymer network of the present invention comprises the following steps:

[0032] (1) Add 10 grams of styrene and 2 grams of divinylbenzene to 88 grams of dicyclopentadiene at 50°C and stir evenly. After the degassing reaction, use nitrogen protection for later use;

[0033] (2) Under the protection of nitrogen, divide the above solution into two parts A and B, and add 0.3837 grams of molybdenum catalyst (the addition amount is 1 / 1500 of the molar number of dicyclopentadiene) and 0.12 grams of dicyclopentadiene to part A Cumene initiator; Add 1.07 grams of diethyl aluminum chloride (20 times the molar number of tungsten catalyst in A part) in part B;

...

Embodiment 3

[0036] The polydicyclopentadiene-polystyrene interpenetrating polymer network of this embodiment is composed of the following components in weight percent: 60 parts of polydicyclopentadiene, 35 parts of styrene and 5 parts of divinylbenzene.

[0037] The preparation method of polydicyclopentadiene-polystyrene interpenetrating polymer network of the present invention comprises the following steps:

[0038] (1) Add 35 grams of styrene and 5 grams of divinylbenzene to 60 grams of dicyclopentadiene at 50°C and stir evenly. After the degassing reaction, use nitrogen protection for later use;

[0039] (2) Under the protection of nitrogen, divide the above solution into two parts A and B, and add 0.2615 grams of molybdenum catalyst (the amount added is 1 / 1500 of the molar number of dicyclopentadiene) and 0.4 grams of azobis Isobutyronitrile initiator; Add 0.729 grams of diethyl aluminum chloride (20 times the molar number of tungsten catalyst in A part) in part B;

[0040] (3) Mix p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a polydicyclopentadiene / polystyrene interpenetrating polymer network and a preparation method thereof. A compound material is formed through simultaneous polymerization of polymeric monomers in part by weight: 60 to 99 part of dicyclopentadiene, 1 to 40 parts of styrene or benzene ring substitution styrene and 0.01 to 10 parts of divinylbenzene, wherein a substitution group in the benzene ring substitution styrene is an alkyl substitution group with halogen or carbon number ranging from 1 to 6; dicyclopentadiene is polymerized by a ring-opening translocation catalytic body; and styrene and divinylbenzene are polymerized by a free radical. Heat generated by ring-opening polymerization of polydicyclopentadiene causes the polymerization of styrene to form an interpenetrating polymer network type compound material taking polydicyclopentadiene as a first network and polystyrene as a second network, as compared with the single polydicyclopentadiene material, the tensile strength is improved by 3 to 15%, the heat distortion temperature is increased by 5 to 13 DEG C, the polymerization conversion rate of the polydicyclopentadiene is increased from 97.2% to 99.5%, and the styrene adopting halogen can enhance the flame retardance of the material.

Description

technical field [0001] The invention relates to a polydicyclopentadiene / polystyrene interpenetrating polymer network and a preparation method of the interpenetrating polymer network, belonging to the technical field of organic composite materials and their synthesis. Background technique [0002] Interpenetrating polymer network is a polymer blend composed of two or more polymer networks that are cross-linked and interpenetrating, referred to as IPNS. Synthetic methods mainly include step-by-step and simultaneous methods. The step-by-step method is to place the already cross-linked polymer (the first network formed by the polymerization of the first monomer) into the second monomer or prepolymer containing catalyst, cross-linking agent, etc., let it swell, and then make it The second monomer or prepolymer is polymerized in situ and cross-linked to form a second network, and the resulting product is called a stepwise interpenetrating polymer network. The synchronous method ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L45/00C08L25/08C08L25/16C08L25/18C08F132/08C08F212/08C08F212/14C08F212/36C08F4/69
Inventor 张玉清张航刘少祯余华宁陆昶赫玉欣姚大虎高喜平
Owner HENAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com